‘This Is a Dangerous Virus’

When bird flu first struck dairy cattle a year ago, it seemed possible that it might affect a few isolated herds and disappear as quickly as it had appeared. Instead,…

Cats May Have Gotten Bird Flu From Raw Pet Food. Here’s What to Know.

Federal officials who spent the last year grappling with a surge of bird flu infections in cows and people are now confronting a spate of new cases in cats, some…

In a First, the E.P.A. Warns of ‘Forever Chemicals’ in Fertilizer

For the first time, the Environmental Protection Agency has warned that “forever chemicals” present in sewage sludge that is used as fertilizer can pose human health risks, saying in a…