HPV vaccine is unrelated to venous blood clots in another huge study

gardasil-retro-advertAnecdotally, it has always seemed like the HPV quadrivalent vaccine, known as Gardasil or Silgard, was the most despised vaccine on the market. Although I write about almost every vaccine, I seem to write more about Gardasil, countering all kinds of silly claims. Despite several large case-controlled epidemiological studies, some of which I’ve discussed previously, there is some pervasive fear that the HPV vaccine is dangerous. You don’t know how many times I’ve read “I vaccinate my kids, but never that Gardasil stuff.”

Just for review, forget that Gardasil saves lives by preventing cancer. The HPV quadrivalent vaccine specifically targets human papillomavirus (HPV) subtypes 16 and 18, that cause not only approximately 70% of cervical cancers, but they also cause most HPV-induced anal (95% linked to HPV), vulvar (50% linked), vaginal (65% linked), oropharyngeal (60% linked) and penile (35% linked) cancers. It also targets HPV6 and HPV11, which account for approximately 90% of external genital warts. The viruses are generally passed through genital contact, almost always as a result of vaginal, oral and anal sex.

There is substantial clinical evidence that once a population is vaccinated against HPV, the rates of infection drop, which should lead to lower risk of various cancers. There is no other way to say this but Gardasil is very safe and very effective at preventing cancers.

But science is irrelevant, if you can spread fear. The antivaccination cult at GreenMedInfo, home of the vaccine denying lunatic Sayer Ji, cherry-picked a whole laundry list of “peer-reviewed”, many of marginal if not laughable quality, trying to “prove” that Gardasil is dangerous. One article, of slightly better quality, use a bit of dumpster diving into the fairly useless VAERS database that showed an overabundance of reporting of venous thromboembolic events, though, because of the quality of data, they authors were unable to establish any firm correlation between the HPV quadrivalent vaccine and those events. Continue reading “HPV vaccine is unrelated to venous blood clots in another huge study”