Dr. Peter Marks, one of the U.S. Food and Drug Administration (FDA)'s top vaccine officials, has resigned, citing the U.S. Department of Health and Human Services (HSS) Secretary Robert F. Kennedy Jr.

Dr. Peter Marks, a veteran of the agency, wrote that undermining confidence in vaccines is irresponsible and a danger to public health.

The top vaccine official with the Food and Drug Administration has resigned and criticized the nation's top health official for allowing “misinformation and lies” to guide his thinking behind the safety of vaccinations.