Helen Branswell covers issues broadly related to infectious diseases, including outbreaks, preparedness, research, and vaccine development. Follow her on Mastodon and Bluesky. You can reach Helen on ...

Clark County Public Health officials issued a warning Wednesday about elevated toxin levels at Vancouver Lake. The agency said test results from Monday water samples showed levels of cyanotoxins from ...

As heat becomes a year-round reality, California is often still responding like it’s an emergency.