H5 bird flu, a type of avian influenza, has infected dozens of people in the U.S., and spread to seven states and Canada this year.As concern grows over whether it could lead to another pandemic or lockdown,

The H5N1 virus that infected a Canadian teen appears not to have spread, but it shows signs of mutation that makes flu virologists nervous.

Another batch of raw milk just tested positive for bird flu in California. Last Sunday, Fresno-based Raw Farm voluntarily recalled a first batch of cream top whole raw milk with a "best by" date of November 27.

California health officials have issued a warning against drinking a second lot of raw milk due to the bird flu virus.

California health officials warned Wednesday not to drink another lot of raw milk from Fresno-based Raw Farm after it tested positive for bird flu virus. More testing of Raw Farm products is underway,

California state officials have suspended a company’s sales of raw milk to retailers amid ongoing concerns about bird flu. Raw milk sales by Raw Farm, located in Fresno, was blocked from distributing its raw dairy products as of Thursday,

A recall is underway for a second batch of raw milk due to the detection of the bird flu virus, health officials said. Pasteurized milk is still safe to drink.

Drinking raw milk is a dangerous choice made all the more risky by the recent outbreak of bird flu in the United States. California state health officials have now detected highly pathogenic avian influenza in unpasteurized milk for sale in Fresno,