Since the approval of human papillomavirus (HPV) vaccine Gardasil in June 2006, 28 cases have been reported of pregnant women miscarrying after receiving the vaccine. Saying that this miscarriage rate is no different than that of the general population, the FDA has said that it will not call for further investigations into the drug's safety.
Gardasil, produced by Merck, protects against two strains of HPV that have been identified as responsible for 70 percent of cervical cancer cases, plus two strains that cause 90 percent of genital warts. A total of 3,461 negative reactions after taking Gardasil were reported to the database, including eight deaths.
Of the 28 reported miscarriages, several were listed as cause unknown, leading a federal investigator to say that one of these, at least, "may have been caused by Gardasil because the patient received the injection within 30 days of the pregnancy."
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