A new strain of bird flu — H5N9 — has been detected in California's Merced County at a commercial duck operation. According ...

A new strain of H5N9 bird flu was detected at a commercial duck operation in California's Merced County. All the ducks were euthanized.

First U.S. detection of virulent H5N9 strain, at a California duck farm, draws scrutiny as evidence of genetic reassortment that could trigger human outbreaks.

Four sea otters in California have died from a rare strain of the Toxoplasma gondii parasite that scientists said could pose a risk to human health. Researchers called the finding a “complete ...

A new bird flu (highly pathogenic avian influenza) outbreak has been discovered in California. The newly reported H5N9 strain was found Monday at a duck farm in Merced County, California ...

California has detected the first U.S. case of a new mpox strain, ... Historically most cases were thought to have been contracted when someone — often children or hunters — had contact with ...

Credit: Shutterstock This week, the World Organization for Animal Health reported that it had been notified by the USDA that a November outbreak of highly pathogenic avian influenza on a California ...

Four sea otters in California have died from a rare strain of the Toxoplasma gondii parasite that scientists said could pose a risk to human health. Researchers called the finding a "complete ...