During his second day of confirmation hearings, Robert F. Kennedy Jr. declined to disavow comments he had made disparaging the vaccine as unsafe.

Merck & Co. (MRK) stock lost over 9% yesterday on announcing a temporary shipment halt of its Gardasil vaccine to China. The pharmaceutical giant’s CEO mentioned this in the Q4 earnings call ...

Merck reported a decline of 17% in sales of Gardasil to $1.55 billion, a vaccine that prevents cancer from HPV, the most common sexually transmitted infection in the U.S., primarily due to lower ...