U.S. and California health officials confirmed two new cases of H5N1 bird flu in dairy farm workers in the state on Friday, bringing the total of infected dairy workers in that state to six, and the total of human cases nationwide this year to 20.

Two additional human bird flu cases confirmed in California

Hunters urged to take biosecurity measures against bird flu
Farmers who plan to hunt geese and ducks this fall should take biosecurity measures to ensure they don't transmit high path avian influenza (bird flu) to their flocks and herds.

U.S. human case of bird flu detected without known animal exposure
The Missouri Department of Health and Senior Services said on Friday that a person hospitalized with bird flu was the first human case detected in the United States without any known animal exposure.

US tests for bird flu in California dairy cattle
The U.S. Department of Agriculture is testing to confirm possible cases of bird flu in dairy cattle in California, the nation's biggest milk-producing state, USDA said on Friday.

CFIA adds requirements for cattle returning from U.S. due to bird flu
Cattle returning from the U.S. after a stay of less than 60 days will require additional certification as bird flu concerns continue.

US undercounts bird flu in cattle as farmers shun testing
Farmers fear economic losses from positive tests, leading to under-reporting; USDA offers partial compensation
The U.S. bird-flu outbreak in dairy cattle is much larger than official figures suggest due to farmers' reluctance to test their animals and risk the economic consequences of a positive result, according to Reuters interviews with dairy experts, veterinarians, and farmers in six states with known cases.

US to expand bird-flu testing of beef in slaughterhouses
The U.S. Department of Agriculture said on Tuesday it will expand bird-flu testing of beef entering the food supply as part of its response to the ongoing outbreak among dairy cattle, adding that U.S. beef and dairy products remain safe to consume.

Bird flu cases among farmworkers going undetected: study
A study posted online on Wednesday suggested that there are more farmworkers infected with bird flu than what has been reported.

US to spend $10 million to curb bird flu in farm workers
CDC plans vaccine push; says risk to general public remains low
The U.S. Centers for Disease Control and Prevention said on Tuesday it plans to spend $10 million to curb farm worker bird flu infections, including $5 million for seasonal flu vaccines, as part of its efforts to avoid further spread and mutation of the virus.

Chicken culling, disposal raise concern as bird flu spreads in U.S.
The spread of bird flu among poultry and dairy farms has heightened some health experts' concerns that the process of killing and disposing of poultry infected with the virus may pose a risk to humans and livestock.