First human case of bird flu in Oregon, as U.S. total rises to 52
Public health officials confirmed six additional cases of bird flu infection of farmworkers, five in California and one in Oregon, raising the U.S. total to 52 this year. The Oregon infection was the first in the state and was tied to an outbreak of the H5N1 avian flu virus at an egg farm in Clackamas County, southeast of Portland. (No paywall)
Bird flu in 7 percent of unprotected farmworkers exposed to infected dairy cows, says CDC
Farmworkers who are exposed to infected poultry or dairy cattle as part of their jobs should be tested for bird flu even if they show no symptoms, particularly if they did not wear protective equipment, said the Centers for Disease Control on Thursday. The CDC revised its safety guidelines after researchers reported that 7 percent of unprotected dairy workers carried antibodies in their blood indicating infection by the H5N1 avian flu virus.
Two additional cases of bird flu in West Coast farmworkers
Bird flu infections have been confirmed in a dairy worker in California and a poultry worker in Washington, raising the U.S. total to 46 people, said the Centers for Disease Control on Wednesday. Meanwhile, the USDA said tests indicated that migratory waterfowl were the source of H5N1 avian flu infections in two pigs on an Oregon farm.
Two additional human cases of bird flu boost U.S. total to 41
The Centers for Disease Control said 41 people, two more than previously confirmed, have contracted bird flu in the seven months since the viral disease first was identified in dairy cattle in Texas. One of the new cases was in California and the other was listed as "jurisdiction pending" in a CDC tally.
Bird flu found in eight dairy herds in Utah, 15th state
The first round of mandatory milk testing in northern Utah identified bird flu infections in eight dairy herds, said the Utah Department of Agriculture and Food on Thursday. Utah is the 15th state to report the avian flu virus in dairy cattle since the disease was first identified in herds in Texas in March.
USDA confident of eradicating virus, although bird flu count keeps climbing
Thirty people have contracted bird flu from exposure to infected animals this year, and more cases are expected, said the Centers for Disease Control on Thursday. At the same briefing, the USDA said it was confident of eradicating the viral disease in dairy herds despite the ever-rising number of outbreaks in California.
Two more California dairy workers have bird flu
California now has 15 confirmed cases of bird flu in humans, all of them dairy farm workers, up from the previous count of 13, said the state Department of Public Health on Wednesday. “While the risk to the general public remains low, additional human cases of bird flu are expected to be identified and confirmed in California among individuals who have contact with infected dairy cattle.”
More California dairies report herds infected by avian flu virus
Nearly 40 percent of 333 U.S. dairy herds infected by the avian flu virus are in California, according to a USDA database on Tuesday. To date, 133 outbreaks have been reported since the first report on Aug. 30. The state Department of Food and Agriculture said it tries to find affected farms as soon as possible so they can implement enhanced biosecurity, cow care, and employee protection measures.
Five additional human cases of bird flu in California, more expected
With five new cases, California accounts for 11 of the 25 cases of human infection by the bird flu virus in the United States this year, said the Centers for Disease Control on Thursday. Additional cases were expected among individuals in contact with infected dairy cattle, said the California Department of Food and Agriculture.
Five California farmworkers have mild cases of bird flu, says state
On the same day the CDC confirmed the third human case of bird flu in California, state officials said Wednesday that they had identified two more possible infections, also farmworkers in the Central Valley. In less than six weeks, California has become the U.S. hot spot for bird flu, with one-third of all the infected dairy herds in the country and all of the human cases since Sept. 6.
USDA: slowdown in detections suggests bird flu is being contained in cattle
Although California reported outbreaks of bird flu in 12 dairy herds last week, most states have gone weeks without new cases being discovered, including those with high levels of scrutiny, according to USDA data. Agriculture deputy undersecretary Eric Deeble cited Colorado and Michigan as examples of the tailing off of infections and said during a multi-agency teleconference that "this decrease gives us confidence" of eliminating the virus in dairy cattle by isolating herds. (No paywall)
California dairy worker has bird flu, first in the state
A dairy farm worker in California’s Central Valley with mild symptoms tested positive for the bird flu virus — the first case in the state and the 16th in the nation this year — said the California Department of Public Health on Thursday. The worker was being treated with antiviral medication and was staying home to recover.
Bird flu spreads among California dairy herds
Five of the six dairy herds infected with the H5N1 avian flu virus this month are in California, all in the past week and all in the Central Valley. State officials said those herds were part of a group of farms targeted for testing because of outbreaks in three other herds at the end of August.
Bird flu takes a summer break
Outbreaks of highly pathogenic avian influenza (HPAI) in poultry and dairy cattle have dropped off sharply in recent weeks, according to USDA databases. There was a similar but longer lull a year ago in bird flu, which has become the largest animal disease event in American agriculture, killing nearly 101 million birds in domestic flocks since it appeared in the United States in February 2022. (No paywall)
USDA plans one-year test of culled dairy cows for H5N1 virus
At the same time that the FDA said a second round of tests showed pasteurization kills the bird flu virus in dairy products, the USDA said it would test beef from culled dairy cows for the H5N1 avian flu virus for the coming year. Nearly $2 million has been paid to dairy farmers since July 1 as compensation for milk production lost to bird flu.
Milk tank tests find 10 Colorado herds infected with bird flu
Ten new outbreaks of bird flu were found in Colorado dairy herds as the result of mandatory testing of milk samples from bulk tanks on the farms, reported the state’s Agriculture Department. The state veterinarian ordered the weekly tests in an effort to curb the spread of the H5N1 avian flu virus in the dairy and poultry industries.
As bird flu spreads among dairy workers, OSHA’s hands are tied
In FERN's latest story, published with The New Republic, reporter Bryce Covert looks at the consequences for the current bird flu crisis of a 1976 congressional decision that undercut OSHA's ability to regulate the U.S. dairy industry.
Bird flu spreads among Colorado farmworkers, with nine infected in two weeks
Nine farmworkers at two egg farms in Colorado have contracted mild cases of bird flu since mid-July while killing and disposing of millions of infected chickens, said public health officials on Thursday. “These preliminary results again underscore the risk of exposure to infected animals,” said the Centers for Disease Control, which added that the risk to the general population remains low.