Fired Tennessee vaccine chief issues warning over the 'politicization of immunization' Dr. Michelle Fiscus, a pediatrician and the former medical director for vaccine-preventable diseases and immunization programs at the Tennessee Department of Health, says her dismissal was politically motivated and the result of anti-vaccine misinformation campaigns. Social Sharing CBC Radio · Posted: Jul 23, 2021 8:40 PM ET | Last Updated: July 24 People hold signs in support of Dr. Michelle Fiscus, who was recently fired from the Tennessee Department of Health.(John Amis/The Associated PRess)