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Atrazine induces complete feminization and chemical castration in male African clawed frogs (Xenopus laevis)

August 4, 2017 at 9:14 pm

The herbicide atrazine is one of the most commonly applied pesticides in the world. As a result, atrazine is the most commonly detected pesticide contaminant of ground, surface, and drinking water. Atrazine is also a potent endocrine disruptor that is active at low, ecologically relevant concentrations. Previous studies showed that atrazine adversely affects amphibian larval development. The present study demonstrates the reproductive consequences of atrazine exposure in adult amphibians. Atrazine-exposed males were both demasculinized (chemically castrated) and completely feminized as adults. Ten percent of the exposed genetic males developed into functional females that copulated with unexposed males and produced viable eggs. Atrazine-exposed males suffered from depressed testosterone, decreased breeding gland size, demasculinized/feminized laryngeal development, suppressed mating behavior, reduced spermatogenesis, and decreased fertility. These data are consistent with effects of atrazine observed in other vertebrate classes. The present findings exemplify the role that atrazine and other endocrine-disrupting pesticides likely play in global amphibian declines.

Atrazine is one of the most widely used pesticides in the world. Approximately 80 million pounds are applied annually in the United States alone, and atrazine is the most common pesticide contaminant of ground and surface water (). Atrazine can be transported more than 1,000 km from the point of application via rainfall and, as a result, contaminates otherwise pristine habitats, even in remote areas where it is not used (, ). In fact, more than a half million pounds of atrazine are precipitated in rainfall each year in the United States ().

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In addition to its persistence, mobility, and widespread contamination of water, atrazine is also a concern because several studies have shown that atrazine is a potent endocrine disruptor active in the ppb (parts per billion) range in fish (, ), amphibians (), reptiles, and human cell lines (, ), and at higher doses (ppm) in reptiles (), birds (), and laboratory rodents (). Atrazine seems to be most potent in amphibians, where it is active at levels as low as 0.1 ppb (). Although a few studies suggest that atrazine has no effect on amphibians under certain laboratory conditions (, ), in other studies, atrazine reduces testicular volume; reduces germ cell and Sertoli cell numbers (); induces hermaphroditism (, , ); reduces testosterone (); and induces testicular oogenesis (, ). Furthermore, atrazine contamination is associated with demasculinization and feminization of amphibians in agricultural areas where atrazine is used () and directly correlated with atrazine contamination in the wild (, , , ).

Despite the wealth of data from larvae and newly metamorphosed amphibians, the ultimate impacts of atrazine’s developmental effects on reproductive function and fitness at sexual maturity, which relate more closely to population level effects and amphibian declines, have been unexplored. In the present study, we examined the long-term effects of atrazine exposure on reproductive development and function in an all-male population of African clawed frogs (Xenopus laevis), generated by crossing ZZ females (sex-reversed genetic males) to ZZ males (SI Materials and Methods). The advantage of using this population is that 100% of the animals tested were genetic males. As a result, all hermaphrodites and females observed are ensured to be genetic males that have been altered by endocrine disruption. We examined sex ratios, testosterone levels, sexual dimorphism, reproductive behaviors, and fertility in males exposed to 2.5 ppb atrazine throughout the larval period and for up to 3 years after metamorphosis.



All of the control animals reared to sexual maturity (n = 40) were males, on the basis of external morphology, whereas only 90% of the atrazine-treated animals (36 of 40) appeared male at sexual maturity (on the basis of the presence of keratinized nuptial pads on the forearms and the absence of cloacal labia). The other 10% of atrazine-exposed animals (n = 4) lacked visible nuptial pads on the forearms and had protruding cloacal labia, typical of females (Fig. 1). Upon dissection of two of the apparent females and laparotomy in another two, we confirmed that animals with cloacal labia were indeed females from the present study, on the basis of the presence of ovaries (Fig. 1F). To date, two atrazine-induced females have been maintained, mated with control males (Fig. 1G), and produced viable eggs (Fig. 1H). The resulting larvae were all male when raised to metamorphosis and sampled (n = 100), confirming that atrazine-induced females were, in fact, chromosomal males. Furthermore, atrazine-induced females lacked the DM-W further confirming that these atrazine-induced females were indeed chromosomal males (Fig. 2). These ZZ females expressed gonadal aromatase, as did true ZW females (n = 4, from our stock colony), but ZZ males (n = 8, control or treated) did not (Fig. 2).

Fig. 1.

Atrazine feminized exposed males. Cloaca (A–C) and gonads (D–F) for control male (A and D), atrazine-exposed male (B and E), and atrazine-exposed female (C and F) ZZ animals (genetic males). (G) Atrazine-induced female (genetic male, ZZ)

Fig. 2.

Atrazine-induced females expressed aromatase in their gonads. (Top) DMRT-1 and DM-W genes from a representative control and an atrazine-exposed adult male (M) and female (F). Morphologic sex was assigned on the basis of the presence of testes (males)


Morphologic evidence.

Atrazine-exposed males had reduced plasma testosterone levels, relative to control males (ANOVA: F = 6.647, df = 1, P < 0.025) when examined 2 years after metamorphosis. Consistent with diminished testosterone levels, atrazine-exposed males had a decrease in testosterone-dependent morphologies, as described below.

Nuptial pads and breeding glands.

The nuptial pads of control males were noticeably darker than in atrazine-exposed males (Fig. 3 A and B). Although color was not quantified, histologic analysis revealed that the size of the dermal breeding glands (determined by the cross-sectional area of the largest breeding gland) was reduced in atrazine-treated males (ANOVA: F = 11.589, df = 1, P < 0.005; Fig. 3 C–E). This effect was specific to the testosterone-dependent breeding glands (), because the size of mucous glands and serous (poison) glands from the same histologic sections were not affected by atrazine (P > 0.05). Other features of the breeding gland that were examined were not significantly different between treatments (P > 0.05).

Fig. 3.

Atrazine-demasculinized male morphology as shown in the nuptial glands and the larynx. (A and B) Forearms, showing nuptial pads from control (A) and atrazine-exposed males (B). Note the reduced nuptial pads in the atrazine-exposed male (B). Black arrowheads

Laryngeal morphology.

Atrazine exposure altered the structure but not the size (P > 0.05) of the larynx (Fig. 3 F–H). The portion of the dilator laryngis that extended ventral to the thiohyrals was greater in control males than in atrazine-treated males, regardless of whether distances were determined by straight-line measurements (ANOVA: F = 11.974, df = 1, P < 0.01; Fig. 3I) or by the actual length of the muscle tracing the division between the slip and the dilator laryngis proper (ANOVA: F = 11.217, df = 1, P < 0.01; Fig. 3J). In fact, the shape of the larynx in atrazine-exposed males resembled the morphology typical of normal (ZW) females maintained in our stock colony (Fig. 3H).


Atrazine exposure resulted in a significant reduction in the relative number of testicular tubules with mature sperm bundles in 2007 (n = 18; ANOVA: F = 8.65, df = 1, P < 0.01); that is, atrazine decreased the frequency of tubules with mature spermatozoa (G test: GH = 13545.2, df = 15, P < 0.001). Similar effects were not observed (P > 0.05) in animals (n = 10) 1 year later at 3 years after metamorphosis, in 2008. Other features of the gonads that were examined were not significantly different (P > 0.05).

Behavioral evidence.

Mating choice studies.

In experiments in which control males and atrazine-treated males competed for females, control males out-competed atrazine males (achieved amplexus) in three out of four trials examined, and only two atrazine-treated males (in a single trial) obtained amplexus (G test: GT = 61.82, df = 4, P < 0.001; Fig. 4A). Male size was not different between treatments and had no effect on the ability of males to achieve amlpexus (P > 0.05; Fig. 4B). Control males had significantly higher testosterone levels in the presence of females, when compared with atrazine-treated males when analyzed by ANOVA (F = 14.65, df = 1, P < 0.001; Fig. 4C) or by Kruskal-Wallis test (χ2 = 9.304, df = 1, P < 0.002).

Fig. 4.

Control males out-competed atrazine-exposed males to copulate with females. Amplexus data from four mate choice trials for control (Con) and atrazine-treated (Atr) males (A). Eleven of 16 control males out-competed atrazine-exposed males for amplexus

Representative testis for control and atrazine-treated males from 2007 are shown in Figs. 5 A–D. Atrazine-treated males had significantly lower fertility rates (proportion of eggs fertilized) when examined by ANOVA (F = 8.026, df = 1, P < 0.01; Fig. 5E) or when examined using a G test with the mean fertility for controls used as the expected frequency (GP = 10,434, df = 1, P < 0.001). Even atrazine-treated males with relatively high sperm content (e.g., animals from the 2008 study) had low fertility (Fig. 5F5F).

Fig. 5.

Atrazine decreased androgen-dependent sperm production, mating behavior, and fertility. (A and C) Largest testicular cross-sections for representative control (A) and atrazine-exposed males (C) from 2007. (B and D) Magnification of individual tubules


Previous studies showed that atrazine demasculinizes (chemically castrates) and feminizes exposed amphibian larvae, resulting in hermaphrodites (, ) or males with testicular oocytes (, ) at metamorphosis. Since our initial publications (, , ), the effects of atrazine on amphibian development and the significance of these effects to amphibian declines have been a subject of debate (, , ). Although some investigators, including Carr et al. (), reported statistically significant effects of atrazine on gonadal morphology in X. laevis (P < 0.0003 for multiple testes and P = 0.0042 for hermaphrodites), others, using different experimental conditions and different populations of the same species, suggested that atrazine had no effect (). Essential to this debate, however, is (i) the terminology used to describe gonadal abnormalities; (ii) the expertise and ability of other researchers to recognize abnormalities; (iii) the possibility of natural variation in sex differentiation processes between species and even between populations (or strains) within a species (); and (iv) the long-term consequences and significance of the observed abnormalities to amphibian reproductive fitness. Here we describe complete and functional female development in genetic (ZZ) males exposed to atrazine, not the production of hermaphrodites or males with testicular oocytes. Thus, there is no confusion in the present study regarding proper terminology or proper identification. Furthermore, because we used an all genetic (ZZ) male colony and genotyped the atrazine-induced ZZ females, there is no question that atrazine completely sex-reversed genetic (ZZ) males, resulting in reproductively functional females.

The present study thoroughly examines the long-term effects of atrazine on reproductive function in amphibians. Although a single published study attempted to examine long-term reproductive effects of atrazine in amphibians (), the authors did not report examinations of morphology. Furthermore, their examination of fertility and breeding of atrazine-exposed males was conducted after animals were injected with reproductive hormones (human chorionic gonadotropin, hCG), effectively providing “hormone replacement therapy” and reversing the effects of atrazine. The present study represents a more thorough examination of the effects of atrazine on sex hormone production, testosterone-dependent development and morphology, male reproductive behavior, and fertility.

Perhaps the most dramatic finding here is that hermaphroditism observed at metamorphosis in animals exposed to atrazine (, ) can ultimately result in complete feminization. The complete feminization of males exposed to atrazine is consistent with two previous studies that showed that atrazine feminizes zebra fish (Danio rerio) () and Xenopus laevis () (Fig. 6) and a more recent study that showed that atrazine exposure feminizes leopard frogs, Rana pipiens (). These previous reports based their findings on shifts in the sex ratio, however; our study showed that atrazine-induced females are indeed genetic males. Furthermore, we showed that feminization is persistent and complete, resulting in reproductively functional females capable of producing viable eggs. Together, the present data and these three similar reports (, , ) suggest that sex-reversal by atrazine (complete feminization of genetic males) is not a species-specific effect but rather one that occurs across nonamniote vertebrate classes.

Fig. 6.

Other studies have shown that atrazine alters sex ratios. Data from Oka et al. () (A) and Suzawa and Ingraham () (B) showing a concentration-dependent decline in males due to atrazine exposure in African clawed frogs (A) and zebrafish (B). The dashed

In addition to feminization, individuals exposed to atrazine that appeared male were demasculinized in the present study. The decline in testosterone in atrazine-exposed males, also shown in previous studies (), is consistent with the decline in all testosterone-dependent morphologies examined here, including demasculinized/feminized laryngeal morphology and decreased breeding gland size. The decreased testosterone and absence of increased testosterone in atrazine-exposed males in the presence of females is further consistent with the inability of atrazine-exposed males to compete with unexposed males for access to females and consistent with the decline in sperm production and severely impaired fertility observed in atrazine-exposed males. The decreased frequency of tubules containing mature sperm suggests that the previously reported decline in germ cells and nursing cells after only 48 h exposure to atrazine in X. laevis () persists through adulthood. Likewise, the demasculinized larynges suggest that the smaller laryngeal size observed at metamorphosis in previous studies (, ) results in persistent effects through sexual maturity. The low fertility rate of atrazine-treated males (regardless of sperm content) suggests that even atrazine-exposed males with adequate sperm do not show the copulatory behavior necessary for successful reproduction.

The present results are also consistent with other studies that examined long-term behavioral effects of atrazine in fish (salmon, Salmo salar) (). Salmon exposed to atrazine (≥6 ppb) showed a dose-dependent decrease in androgens. Atrazine-exposure (≥6 ppb) resulted in a significant decline in sperm production (milt), and exposed males lost the ability to respond to the attractant female pheromone. Furthermore, atrazine reduced sperm content in a reptile (caiman, Caiman latirostris), producing a morphology nearly identical to what we report here (). The similarities between these previous findings in fish () and in reptiles () and the present findings in an amphibian suggest that the demasculinizing effects of atrazine are also not species, genera, family, or even order specific but occur across vertebrate classes. Indeed, declining androgens (, ) and decreased sperm production have been shown in laboratory rodents exposed to atrazine as well (, , ), albeit at higher doses. Furthermore, atrazine exposure is highly correlated (P < 0.009) with low sperm count, poor semen quality, and impaired fertility in humans ().

Although atrazine reportedly affects vertebrates through a number of mechanisms, the reported mechanism most consistent with the effects observed on amphibian reproduction here is the induction of aromatase, which has been shown in several vertebrate classes (, , ). The induction of aromatase is consistent with the natural sex differentiation process in X. laevis, in which the sex-determining gene, DM-W, is a transcription factor () that induces aromatase expression in the developing undifferentiated gonad of genetic (ZW) females (). Transcription and subsequent translation of aromatase leads to estrogen production, which in turn directs differentiation of the ovary from the undifferentiated gonad. Just as exogenous estrogen results in the differentiation of ovaries in exposed genetic (ZZ) male X. laevis (), induction of aromatase and subsequent estrogen production likely explain the complete feminization of genetic male X. laevis by atrazine. Although ideally one needs to show that atrazine induces aromatase in genetic males before the transformation into females to support this hypothesis, it is not clear how such a study can be conducted here. Animals euthanized to measure aromatase expression do not have the opportunity to develop further, and thus it cannot be shown that the individuals that expressed aromatase were destined to become females. Furthermore, why only some males (10% in the present population) are completely feminized, whereas their siblings are merely demasculinized, remains to be explored.

Regardless of the mechanism, the impacts of atrazine on amphibians and on wildlife in general are potentially devastating. The negative impacts on wild amphibians is especially concerning given that the dose examined here (2.5 ppb) is in the range that animals experience year-round in areas where atrazine is used (, , ), well within levels found in rainfall (), in which levels can exceed 100 ppb in the midwestern United States (), and below the current US Environmental Protection Agency drinking water standard of 3 ppb (). Furthermore, recent studies have shown that frog skin absorbs atrazine at much higher rates than the skin of mammals (), and even semiterrestrial frog species take up significant amounts of atrazine (). Thus, the exposure level examined in the present study is relevant even to semiterrestrial amphibians.

Although many studies have focused on death from disease and its role in global amphibian declines and sudden enigmatic disappearances of populations, virtually no attention has been paid to the slow gradual loss of amphibian populations due to failed recruitment (). The present study suggests several ways that exposure to endocrine disruptors such as atrazine may lead to population level effects in the wild and contribute to amphibian declines. Certainly, the inability to compete for females and the significant decline in fertility in exposed males, as reported in the present study, will have a direct impact on exposed populations. Furthermore, sex-reversed males (ZZ females) are only capable of producing genetic male (ZZ) offspring, so the sex ratio in exposed populations would be skewed both by the production of atrazine-induced ZZ females as well as by the fact that ZZ females can only produce ZZ (genetically male) offspring. In fact, mathematical models suggest that this very mechanism (the production of sex-reversed all male-producing animals) could drive populations to extinction (). Additionally, it is not known whether the increased susceptibility in the ZZ females is heritable or whether the “resistance” apparently present in atrazine-exposed males that do not become females is heritable. In either case, clearly, selection for resistance or susceptibility will affect population genetics and perhaps even cause bottlenecking and loss of genetic diversity. Atrazine likely affects amphibian populations through any combination of these effects and, as such, is a likely contributor to global amphibian declines. It seems that the concerns of Sanderson et al. [“A logical concern would be that exposure of wildlife and humans to triazine herbicides, which are produced and used in large quantities, and are ubiquitous environmental contaminants, may similarly contribute to estrogen-mediated toxicities and inappropriate sexual differentiation.” ()] may be borne out.

Materials and Methods

Atrazine Exposure.

For methods regarding generation of sex-reversed (F1) males and F2-ZZ larvae, as well as animal husbandry, see SI Materials and Methods. ZZ larvae (F2) were reared in atrazine (2.5 ppb dissolved in ethanol) from hatching, through metamorphosis [Nieuwkoop and Faber (NF) stage 66] and throughout postmetamorphic life for comparison with control (ethanol-treated) animals. Total ethanol concentration was 0.003%. Atrazine levels and the absence of atrazine in control tanks were monitored by ELISA (Abraxis BioScience).

Morphometric Analysis (Larynx, Breeding Glands, and Gonads) at Sexual Maturity.

These analyses were conducted on sexually mature animals (2 or 3 years after metamorphosis, as indicated). For larynges, the proportion of the dilator larynges that extended below the thiohyral was determined (Fig. 3 F–H). For nuptial pads, histologic sections (8 μm) were cut through the geometric center of the nuptial pad. The maximum cross-sectional area of breeding glands was determined and compared with the maximum cross-sectional area of mucous and serous glands. For testis, the stages of spermatogenesis from five random testicular tubules and from the largest tubule from each cross-section were analyzed, as well as the proportion of testicular tubules from the largest cross-sections with and without spermatozoa bundles. For other measurements and corrections conducted, see SI Materials and Methods.

Molecular Markers for Sex.

Genomic DNA was isolated from toe tips prepared by tissue lysis and proteinase k protein digestion. The ZW genotype was determined by multiplex PCR amplification (37 cycles) of DM-W (W specific) (). The four animals determined to be female, on the basis of external morphology, were analyzed for comparison with four males. For conditions and primers, see SI Materials and Methods.

RT-PCR for cyp19 Aromatase.

RT-PCR for cyp19 aromatase was conducted using RNA extracted from gonads of the two atrazine-treated females that were euthanized, along with four control males and four stock ZW females as controls. For conditions and primers, see SI Materials and Methods.

Mate Choice.

To compare the ability of control and atrazine-exposed males to attract females and achieve amplexus, we conducted the following behavioral studies. Males and females were marked for identification with unique single black or white stitches placed (without anesthesia) in the dorsal skin using silk thread. Stock ZW females maintained for this purpose (SI Materials and Methods) were then injected with hCG (1,000 IU) at 1500 hours. Four stock females (ZW), four control males (no hCG injection), and four atrazine-exposed males (no hCG injection) were all placed in a circular pool (diameter = 168 cm, height = 41 cm) filled with 264 L of fresh dechloraminated water. Animals were left overnight. At 0600 hours the next day (1 h before lights on), amplectant pairs were observed and animals identified under red light. Pairs and single males were removed from the pool and blood samples immediately taken from all males via cardiac puncture without anesthesia, as described previously (). Sampling was alternated between controls and atrazine-treated males and the time of capture and time of blood draw recorded for each. Blood plasma was collected after centrifugation at 209 × g at 4 °C and stored at −20 °C. Plasma testosterone was extracted and measured by RIA as described by Hayes et al. (). These behavioral trials were replicated five times, but data were obtained for only four owing to a failure in lighting during one trial. In all cases, all control and atrazine-treated males were virgins and had never been exposed to females. Stock females were also virgins and had never been exposed to males. In each replicate, control and atrazine-treated males were matched for size (snout–vent length and body weight) so that there were no significant differences (ANOVA: P > 0.05) in male size between groups and size had no effect on mating success (SI Materials and Methods). To examine the frequency of successful copulations, a G test () was used with replicate (i.e., trial) nested within treatment. For testosterone analysis, an ANOVA was conducted to examine differences in testosterone levels between control and atrazine-treated males (SYSTAT; SPSS). Data were also examined using a Kruskal-Wallis test.

Fertility Analysis.

To examine fertility, two studies were conducted. In the first, conducted on December 8, 2007, nine control and nine atrazine-treated males (both without hCG injections) were paired with stock ZW females (hCG-injected). Females (from the same San Diego colony) were injected and paired with individual males in aquaria (46 × 25 × 20 cm) with 10 L of fresh 10% Holtfreter’s solution and left overnight at 22 °C. At 900 hours, eggs were collected. Eggs were aerated and allowed to develop for 72 h, after which time they were fixed in Bouin’s fixative for 48 h and then preserved in 70% ethanol (two changes over 48 h). Fertility was determined by counting the number of undeveloped eggs and the number of developed embryos (NF stages 14–34). Fertility data (proportions) were arcsine transformed before ANOVA. In addition, mate choice data were subjected to analysis by G test. All males and females used in this study were virgins and had no previous exposure to the opposite sex. The animals used in this study were distinct from those used in the breeding studies above. This study was repeated on December 12, 2008 with five control and five atrazine-exposed virgin males. In both cases, the control males and the atrazine-treated males were tested in separate rooms, so that vocalizations from one group did not affect the results in the other. The animals in both of these studies were the same ones used for the histologic analyses and morphometric studies described above.


Supplementary Material

Supporting Information:


We thank Roger Liu for generating the ZZ colony. This work was supported by grants from the Park Water Company, the Mitchell Kapor Foundation, the David Foundation, the Cornell-Douglas Foundation, the Wallace Foundation, and the Class of ‘43 Endowed Chair (to T.B.H.). R.L. was supported by a grant from the University of California Toxic Substances Research and Teaching Program, and the colony was generated under funding from the National Science Foundation. T.B. was supported by a Hewlett Packard Fellowship. V.K. and A.N. were supported by Biology Fellows Program grants from the Howard Hughes Medical Institute. S.G. was supported by a Mentored Research fellowship from the University of California, Berkeley. Animals were collected from the field under a permit from the California Department of Fish and Game (to T.B.H.), with the permission of Tecalote Regional Park. All animal studies were conducted in accordance with Animal Use Protocol R209-011BRC (to T.B.H.).

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Gardasil: The Decision We Will Always Regret

June 25, 2017 at 7:18 am

By all accounts, our daughter was normal before receiving the HPV vaccine.  Katie performed very well in school.  She was conscientious, hard-working and took pride in getting good grades.  She loved dancing having taken dance classes since she was 3 years old.  Katie always danced and twirled throughout our home and anywhere else she happened to be.  When Katie was 10, she joined cheerleading and became involved in competition cheerleading.  She was very active, taking four hours of dance class every week plus spending many more hours practicing with her competition cheer team.  Katie was healthy and vibrant.

We were very diligent with our children’s health.  We never missed an annual check-up and we also followed the pediatrician’s recommended vaccine schedule including annual flu shots.  Our pediatrician recommended the Gardasil vaccine.  The Gardasil vaccine was heavily advertised on TV.  We read the vaccine Disclosure.  It said that the vaccine should not be given to those with HIV.  Katie did not have HIV so we signed the Consent.

On September 2, 2010 at the age of 11, Katie received the first Gardasil vaccine.  Katie’s first day of middle school was September 7, 2010.  Initially, we believed that her fatigue and headaches were being caused by having to get up much earlier in the morning for middle school.  However, she never adjusted to the new schedule and soon her symptoms began exploding.

Katie would often tell us “I don’t know what’s wrong, I just don’t feel good.”  She began sleeping a lot – over 12 hours a day and even more on the weekends, which would allow her gather enough energy to go to school a few days before she crashed again.  She missed days at school, dance lessons and cheer practices.  Soon her illness was visible on the outside too.  Katie didn’t look good – constant dark circles under her eyes, her skin color was ashen and she appeared listless.

To us, it seemed that her symptoms must be related to the Gardasil vaccine.  Katie’s earliest symptoms began after receiving this vaccine.  We searched the internet but only found vague information – nothing that matched our daughter’s symptoms.  We asked Katie’s pediatrician and other specialists if the Gardasil vaccine could be related to her symptoms but our inquiries were quickly dismissed as not having any correlation to her illness.

Katie’s earliest symptoms were a constant headache or migraine that did not respond to pain relievers, stabbing 24/7 bilateral ear pain, fatigue not relieved by sleep, abdominal pain, nausea and joint pain.  We called and visited her pediatrician repeatedly.  We began taking Katie to specialists including Neurologists, ENT’s, GI, and an OBGYN and made several visits to the Emergency Room.  Katie also received many blood tests, CAT scans and an MRI.  Nothing any of the doctors did relieved Katie’s symptoms.  As a matter of fact, the drugs prescribed to alleviate her symptoms only made her feel worse.  Our pediatrician and other doctors involved with Katie’s care began suggesting that her illness was psychosomatic and recommended that we take her to a psychologist.  We soon found that we were on our own, dealing with a medical issue we did not understand but trying desperately to help our daughter.

When searching the internet with Katie’s symptoms, Lyme disease would always come up as the search result.  In addition to asking all of Katie’s doctors if the Gardasil vaccine was the cause of Katie’s illness, we also began asking if Lyme disease could be the culprit.  In October 2010, Katie was first tested for Lyme disease.  The results were negative as were two later rounds of testing.  We read on the internet that ELISA and Western Blot tests for Lyme disease are unreliable and that many people who actually had Lyme disease tested negative.  Since this information is all over the internet, we thought it was common knowledge to doctors as well.   Instead, we were emphatically told by doctor after doctor that this was not true, that the testing for Lyme disease is highly reliable and that there was no way Katie had Lyme disease.  In April 2011, Katie could no longer go to school or participate in dance or cheerleading – the pain and fatigue was all consuming.  Nothing any of the doctors did provided any relief yet every doctor refused to consider Lyme disease or that the Gardasil vaccine was related to her illness.

Katie’s list of symptoms included the following:  24/7 headaches and migraines, 24/7 stabbing ear pain, hyperacusis, fatigue, abdominal pain, nausea, all over joint pain, constant sore throat, visual disturbances, light sensitivity, cognitive issues such as memory and severe comprehension problems, random numbness and tingling, weird “bug crawling” skin sensations, generalized weakness throughout her body (it was difficult for Katie to just sit in the shower to bathe), dizziness, fainting and heart palpitations.  She slept long hours and stayed in her bedroom shielding herself from the noise of everyday living.

In May, we requested testing through a lab specializing in tick-borne disease testing.  Katie’s pediatrician reluctantly signed the lab Requisition Form.  This time the test results showed that Katie was highly positive for Bartonella Henselae, a tick-borne disease also known as a co-infection to Lyme disease.  She was also highly positive for Mycoplasma Pneumonia andthe testing showed that her immune system was struggling.  Katie’s Western Blot for Lyme disease was negative.

Katie: My Gardasil Nightmare

Katie: My Gardasil Nightmare


We took those results with us to a long awaited CHOP Diagnostic Center appointment (think the “Dr. House” of the Children’s Hospital) and also to her CHOP Neurologist.  Katie even had the classic Bartonella rash (looks like purple and red stretch marks) surrounding her breasts and hips which is confirmation of an active Bartonella infection.  Both doctors told us that these test results only showed that Katie was “exposed” to Bartonella – it did not mean she had an active infection.  Both came to the same conclusion that her Bartonella rash was actually just stretch marks.  That was particularly hard for us to believe.  Katie was muscular and lean from years of dance and cheer.

Neither doctor was concerned about her blazing Mycoplasma Pneumonia infection nor was the fact that the testing showed her immune system impaired.  Instead, CHOP Diagnostic Center diagnosed Katie with the beginning stages of Dysautonomia (a malfunctioning automatic nervous system).  We were told that there was no cure and that symptoms were managed with medications. The CHOP Neurologist wasn’t in agreement with CHOP Diagnostic Center; instead she stuck to her prior diagnosis – Chronic Migraine Disorder with Chronic Ear Pain Neuralgia.  The Neurologist recommended that we continue with the same treatment of 20 pills a day even though it did absolutely nothing for Katie other than increase her nausea and head pain.   We felt utter disbelief, despair and anger.

We found our way to a local support group for those suffering with tick-borne diseases, which provided recommendations to LLMD’s (Lyme Literate Medical Doctors).  Katie’s first appointment with an LLMD was in June 2011.  This physician spent an hour reviewing blood tests and other medical reports we collected and asked a lot of questions that had never been asked before.  He clinically diagnosed Katie with Lyme disease and agreed with the test results that reported active infections with Bartonella Henselae and Mycoplasma Pneumonia. He told us that Katie was very sick.  Ironically, upon hearing that news we felt utter relief.  This was the first doctor, since Katie’s illness began over nine months before that acknowledged she was ill.  Since that time, Katie was diagnosed with chronic Strep, HHV6, hypo-coagulation, susceptibility to bio-toxin illness (mold and environmental sensitivities) and has acquired autoimmune thyroid disease.

It has been three and a half years since Katie received the Gardasil vaccine and she still remains chronically ill.  She was unable to attend school in 7th and 8th grades.  This year, Katie decided to repeat 8th grade again rather than begin high school still sick.  Katie has an IEP plan in school which reduces her daily schedule to three core classes only.  Unfortunately, Katie is still too sick to attend school with any regularity.  Most days, a teacher comes to our home to review the lessons she missed at school.  Some days, Katie’s pain levels are too high so that she can’t even tolerate home tutoring.  Although she longs to get back to dancing again, she spends most days in her room sleeping or resting and trying to cope with chronic pain.  At 14 years old, Katie’s life closely resembles a sick elderly person instead of an active vibrant teenager she should be.

After Katie was finally diagnosed with tick-borne diseases, we put our initial suspicion about the Gardasil vaccine aside.  Since the treatment of tick-borne diseases is considered emerging medicine, I am always combing the internet for new information on tick-borne diseases, the latest research or treatments.  To our utter disbelief, I came across an article reporting that the Gardasil vaccine can activate a latent Bartonella infection that was otherwise being suppressed by a properly functioning immune system prior to vaccination.   We now believe our earliest suspicion was correct.

We found many stories about devastating health changes post-vaccine.  These stories are eerily familiar to our daughter’s.  The Gardasil vaccine is known to activate latent infections and viruses, such as Epstein Barr and Bartonella.  The Gardasil vaccine deregulates the immune system and that allows latent infections and viruses, which were kept in check pre-vaccine by a then properly functioning immune system, to activate post-vaccine.  Now, there is evidence that the HPV vaccine is linked to the onset of autoimmune diseases.

We recently consulted Katie’s LLMD and also her Primary Care Physician, who reviewed Katie’s vaccine log and extensive medical records.  Both agree that Katie’s immune system was injured by the Gardasil vaccine and that it was the catalyst to her cascading health problems and chronic illness.  Katie’s LLMD is now treating her for a vaccine injury in addition to treating multiple tick-borne diseases, other infections/viruses and autoimmune thyroid disease.

At this point, we are totally outside our insurance company and most everything is out-of-pocket.  The overall expense of Katie’s illness greatly outpaces our income so many expenses are put on credit cards.  But the biggest cost by far is the toll that the Gardasil vaccine has taken on our daughter’s health and well-being.  We wonder if she will ever be able to reclaim her health and get back to living a normal life free of pain.

We deeply regret consenting to the Gardasil vaccine.  We had no idea of the severe side effects some experience post vaccine.  Every day, we wish we had been more informed.  Parents beware of blindly following your doctor’s recommended vaccine schedule.  Do not rely or expect your doctor to know everything.  You must do your own research and ask plenty of questions.  Our family found out the hard way that it is possible for a vaccine to have lasting and devastating effects.


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Heal yourself tips

June 14, 2017 at 9:00 pm

Dr. Liu Yiping , encouraged each person receiving this to forward it to another ten people, certainly at least one life will be saved … I’ve done my part, I hope you can help do your part. thanks! Drinking hot lemon water can prevent cancer. Don’t add sugar. Hot lemon…

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Maybe You Aren’t Gluten Intolerant. Maybe You’re Just Poison Intolerant.

June 8, 2017 at 9:50 pm

Over the past couple of years, I had the unpleasant experience of having bloodwork done to confirm that I am gluten intolerant, only to have it come back and say, “Nope, you’re just crazy.” The same thing happened to my good friend Melissa Melton, who was terribly ill before she cut wheat…

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Dasani Bottled Water Has 4 Ingredients: Tap Water, Known Teratogen, Lethal Drug, and Salt

June 3, 2017 at 3:08 am

Dasani bottled water contains four ingredients: tap water, magnesium sulfate, potassium chloride, and salt. The Dasani label claims these ingredients are added for taste, and while that may be true, these ingredients change a lot more than taste. Do you know what’s really in your bottled water? Dasani Ingredient #1: Tap…

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Modern Medicine is a Disease

May 21, 2017 at 11:22 pm

Doctors, their medical organizations and the great pharmaceutical companies practice a sinister form of medicine that directly causes suffering and pain in people’s lives. Thus, I am not surprised when James Howard Kunstler writes that modern medicine is a hostage racket: “Medicine is now a catastrophe every bit as pernicious…

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An Easy-To-Understand Tooth Chart of Meridians

May 13, 2017 at 5:28 pm

Given the connection between teeth health and wellness in other parts of your body, following are some maladies that have been associated with certain teeth (4). A toothache doesn’t necessarily mean that there is a problem elsewhere; however, it is a possibility to explore, especially if discomfort lingers. Here are…

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Vaccines – Are They the New “Crimes Against Humanity?”

May 12, 2017 at 5:27 am

Part 1… By Elissa Meininger – Health Policy Analyst The Nuremberg IG Farben “Crimes Against Humanity” War Crimes Trial Began 27 August 1947…. The text below was part of the opening statement of General Telford Taylor, Chief Prosecutor of the Nazi War Crimes Trial of IG Farben where 23 top executives…

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Brands to boycott: Naked juice owned by PepsiCo, Odwalla owned by Coca-Cola

May 8, 2017 at 8:05 am

Pepsi and Coke both sell “natural” food smoothies and other products under the brands Naked and Odwalla, respectively. Both of these so-called health food brands have been around for some time now, yet most people are completely in the dark about the corporations behind these creations. Pepsi and Coke only…

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