Merck could lose up to $630 million in Gardasil revenue this year now that the U.S. no longer recommends three doses of the HPV shot in the childhood vaccine schedule, according to Jefferies analysts.

SHILLINGTON, Pa. – The Centers for Disease Control and Prevention says it's reducing the number of vaccines it routinely recommends for all children. However, Pennsylvania is standing firm.

ORLANDO, Fla. — The Florida Department of Health held its first public workshop Friday on the subject of changing state rules regarding vaccines. It’s part of an ongoing push led by the state’s ...