U.S. officials have announced that the director of the Centers for Disease Control and Prevention has resigned because of financial conflicts of interest.
While declaring the opioid crisis a national public health emergency Thursday, President Donald Trump said: "Nobody has seen anything like what's going on now."
A puzzling study of U.S. pregnancies found that women who had miscarriages between 2010 and 2012 were more likely to have had back-to-back annual flu shots that included protection against...
A safe haven where drug users inject themselves with heroin and other drugs has been quietly operating in the United States for the past three years, a report reveals.
The flu vaccine was ineffective in protecting older Americans last winter against the illness, even though the vaccine was well-matched to the flu bugs going around.