There’s a sinister health threat we’re not taking seriously enough, a new paper argues – and it’s not a virus, bacterium, nor ...

Brain-eating amoebas have taken up residence in Tucson's water supply as recent tests have shown their presence in 12 wells. While the discovery of the killer amoeba, known as Naegleria fowleri, is ...

Leana S. Wen, a Washington Post contributing columnist, writes a twice-weekly column on a broad range of topics with an emphasis on public health and health policy. She writes the newsletter The ...