Dr. Kevin Fenton directs the Centers for Disease Control and Prevention's National Center for HIV/AIDS, Viral Hepatitis, STD and TB Prevention. The CDC is tracking a new "superbug." (Associated Press)
Featured Photo Galleries
Dr. Kevin Fenton directs the Centers for Disease Control and Prevention's National Center for HIV/AIDS, Viral Hepatitis, STD and TB Prevention. The CDC is tracking a new "superbug." (Associated Press)
