bird flu
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. <strong>(No paywall)</strong>
Five Missouri healthcare workers with respiratory symptoms to be tested for bird flu
Blood samples from five healthcare workers in Missouri will be tested for exposure to the avian flu virus, said the Centers for Disease Control in a weekly update on bird flu. The workers developed mild respiratory symptoms while involved in treatment of a patient infected with the H5N1 virus but who had no known contact with animals.
Number of California dairy herds with bird flu triples in a week
Bird flu was confirmed in 24 additional dairy herds in California last week, and the state now has the second-highest number of infected herds in the country, 34, said USDA data on Monday. All of the cases were discovered since Aug. 30.
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.
California quarantines three dairy farms hit by bird flu outbreaks
The H5N1 avian flu virus infected three dairy herds in California's Central Valley, the first time the disease has been confirmed in the nation's largest milk-producing state, said officials. California was the first new state to be hit by the disease since Oklahoma reported cases on July 11.
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. <strong>(No paywall)</strong>
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.
Risk assessment validates ongoing U.S. response to H5N1 virus, says CDC
While the risk to the general population from the H5N1 avian flu virus remains low, an assessment rated its future pandemic potential as moderate, the same as previous assessments, said the Centers for Disease Control and Prevention. "The results of this IRAT [Influenza Risk Assessment Tool] validate the pro-active, coordinated U.S. government response," said the CDC in a weekly report on bird flu.
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.
Poultry worker at second Colorado farm has bird flu
A farmworker on an egg farm in northeastern Colorado is the ninth person in the state, and the 12th in the nation, to be diagnosed with the H5N1 avian flu virus, said state public health officials. The new case was confirmed in Weld County, where six laborers were infected at a different farm in the past week.
Seventh poultry worker in Colorado with bird flu
An additional worker became infected with the H5N1 avian flu virus while culling sick hens at a Colorado egg farm, said state public health officials, raising the U.S. total of infected workers to 11, all with mild symptoms. Eight of the cases, seven involving poultry and one involving dairy, have occurred in Colorado.
PPE use ‘not optimal’ among poultry workers infected with bird flu
Despite the discovery of bird flu among five workers at a Colorado egg farm, there is no reason to vaccinate livestock workers against the viral disease, said a top CDC official on Tuesday. Nirav Shah, CDC principal deputy director, said a heat wave, with temperatures above 100 degrees, may have discouraged workers from wearing a full set of protective gear.
Colorado workers are first since 2022 to catch bird flu from poultry
A total of five workers — two more than initially reported — contracted mild cases of bird flu while culling infected chickens with the viral disease on an egg farm, said Colorado public health officials. They were the first poultry workers known to have contracted bird flu since May 2022; four dairy farmworkers have been diagnosed with the disease, which is also spread by cows, since April, including one in Colorado.
With three new cases, Colorado leads U.S. in bird flu infections of humans
Three workers at a Colorado egg farm contracted mild cases of bird flu while culling an infected flock of chickens, said state public health officials. With the discovery, Colorado is home to four of the seven U.S. cases of bird flu in humans reported since April. <strong>(No paywall)</strong>
Colorado dairy worker had mild case of bird flu
FDA says milk-processing practices kill H5N1 virus
A first-of-its-kind study that simulated commercial milk processing "found that the most commonly used pasteurization time and temperature requirements were effective at inactivating the H5N1 (avian flu) virus in milk," said the Food and Drug Administration. "These results establish that HTST (high temperature short time) pasteurization is effective at eliminating the virus from milk with a large margin of safety."
USDA offers 90 percent compensation for bird flu losses in dairy herds
The government will compensate farmers for 90 percent of the value of milk lost as a result of H5N1 avian flu infections in their dairy cows, announced Agriculture Secretary Tom Vilsack on Thursday. “We want to assist our producers every way we can to help them as they combat this emerging animal health disease,” he said.
FDA begins new round of tests for H5N1 virus in dairy products
As part of research into milk safety, the FDA will conduct a second round of tests for the H5N1 avian flu virus in dairy products, aiming at a broader range of goods, such as aged raw milk cheese and butter and ice cream, the agency announced on Tuesday. The USDA said it intended to eradicate bird flu in dairy cattle without resorting to a yet-to-be-developed vaccine.