Louisiana patient is first severe U.S. case of bird flu
A Louisiana resident was hospitalized with “severe illness” due to the bird flu virus, the most serious U.S. case since the viral disease appeared in wild birds in the South nearly three years ago, said the Centers for Disease Control on Wednesday. Meanwhile, Gov. Gavin Newsom declared a state of emergency as bird flu outbreaks in dairy herds, previously limited to the Central Valley, were detected in Southern California.
USDA orders testing nationwide for bird flu virus in milk fresh from the cow
The Agriculture Department will launch a testing program next week that looks for the bird flu virus in milk fresh from the farm to get a clearer picture of the prevalence of the H5N1 virus among U.S. dairy herds. Agriculture Secretary Tom Vilsack said the tests would complement ongoing …
One mutation could make H5N1 a greater threat, researchers say
While there has been no sign of person-to-person spread of bird flu, researchers said on Thursday that a single mutation in the H5N1 avian influenza virus could enhance the virus’ ability to attach to human cells. That could potentially increase the possibility of transmission among humans, said the study, led by a team of scientists at the Scripps Research Institute.
Raw Farm recalls all unpasteurized whole milk and cream products
A Fresno dairy recalled all of its unpasteurized whole milk and cream products following “multiple bird flu detections in the company’s milk and dairy in the past week,” said the California Department of Public Health. Meanwhile, on Wednesday, the Centers for Disease Control confirmed the 32nd human case of bird flu in the state.
California finds bird flu virus in raw milk
Public health officials in California's Silicon Valley said tests found the bird flu virus in a container of raw milk purchased at a local store and warned consumers on Sunday not to consume the milk. The supplier, Raw Farm, of Fresno County, issued a recall of the batch of milk that was involved.
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.