The study also concluded that “the significant increase observed after one year on this particular dose is unlikely to be due to chance or random variation.”

The study also concluded that “the significant increase observed after one year on this particular dose is unlikely to be due to chance or random variation.”

Another HPV vaccination trial, conducted in South Africa, found that the vaccine did not protect against HPV 16. Some scientists have questioned whether it’s possible to develop a safe form of Gardasil that’s been tested only once. A recent editorial published in JAMA, the Journal of American Medical Association, argued that it would