A third U.S. dairy worker tested positive for bird flu after exposure to infected cows, and was the first to suffer respiratory problems, U.S. officials said on Thursday.

Bird flu infects third US dairy worker; Michigan set to expand testing

Bird flu found in U.S. alpacas
The bird flu strain that has infected dairy cattle herds in nine U.S. states has been detected in alpacas, says the United States Department of Agriculture (USDA).

Dutch government plans to vaccinate poultry against bird flu
Two vaccines have proved effective in in research but haven't been tried on-farm
Bird flu vaccines for laying hens are effective in practice, the Dutch government said on Tuesday, while confirming plans to vaccinate poultry against the virus.

Raw milk containing bird flu virus infects mice in study
Feeding raw milk contaminated with bird flu to mice infected them with the virus, adding to evidence that consumption of unpasteurized milk is not safe for humans, according to a study published on Friday in the New England Journal of Medicine.

Bird flu detected in tissue samples of US dairy cow sent to slaughter, USDA says
Bird flu virus particles were found in tissue samples taken from one dairy cow sent to slaughter at a U.S. meat processing plant, but none were detected in samples from 95 other cattle, the U.S. Department of Agriculture (USDA) said on Friday.

Second US dairy worker infected with bird flu
A Michigan health official on Wednesday said that a dairy worker had contracted bird flu, the second U.S. human case reported since the virus was first confirmed in dairy cattle in late March.

US CDC asks states to keep flu testing on high this summer
The U.S. Centers for Disease Control on Tuesday advised states to aid in H5N1 bird flu surveillance by increasing testing of influenza A virus samples during the summer to help detect even rare cases of transmission of the virus in humans.

Bird flu found in Illinois, Florida wastewater
A U.S.-based wastewater detection dashboard has identified high levels of influenza A (a subtype of H5N1 bird flu) in Illinois and Florida—two states that have not yet reported positive cases of the disease in dairy herds.

Canadian milk samples test negative for bird flu
It’s so far, so good when it comes to Canada’s milk testing efforts against bird flu as all samples have tested negative thus far.

US to provide nearly $200 million to contain bird flu spread on dairy farms
The Biden administration said today it will provide nearly $200 million to fight the spread of avian flu among dairy cows, in the government's latest bid to contain outbreaks that have fueled concerns about human infections with the H5N1 virus.