Douglas Sacha / Getty ImagesHealth newsMore people sick after eating romaine lettuce in latest E. coli outbreak
Minnesota Department of Public Safety via AP fileVapingOver half a million marijuana vapes seized in last 2 years
Justin Sullivan / Getty Images fileOUT Health and WellnessU.S. to give free HIV-prevention pills to uninsured — with one costly loophole
Jackie Clausen / The Times / Gallo Images via Getty Images fileOUT Health and WellnessHIV experts 'optimistic' about vaccine trials
Nhung Le / for NBC NewsClimate in CrisisWhen it comes to access to clean water, 'race is still strongest determinant,' report says
Mike Siegel / The Seattle Times via AP fileHealth newsDeadly superbug MRSA can linger on surfaces in the home for months
Sergio Flores / Bloomberg via Getty Images fileVapingFurther evidence links vitamin E oil to vaping illnesses