In a recent essay, researchers have pointed out that there is a major discrepancy in claims regarding the safety and efficacy of HPV vaccines Gardasil and Cervarix. One major concern is the claim that HPV vaccines are an important tool in preventing cervical cancer. But the efficacy of the vaccines in preventing cervical cancer has not been demonstrated because the study periods have been too short.
In fact, even persistent HPV infections do not generally lead to cervical cancer in the long term; most HPV infections resolve spontaneously within 2 years.
According to Medscape:
“HPV vaccines must maintain a near 100% efficacy for a full 15 years, at a minimum, for cervical cancer to be prevented ... So far, Merck has not conducted any studies, nor are any planned, to evaluate the long-term immunogenicity and efficacy of needed booster shots ... Reported serious adverse reactions associated with HPV ... include death, convulsions, paraesthesia, paralysis, Guillain–Barreì syndrome, transverse myelitis, facial palsy, chronic fatigue syndrome, anaphylaxis, autoimmune disorders, deep vein thrombosis, pancreatitis, and pulmonary embolism.”