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.
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.
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. (No paywall)
H5N1 virus particles found in meat from dairy cow
Meat from a dairy cow sent to slaughter contained particles of the H5N1 avian influenza virus — the first such finding since the virus jumped to cattle from birds a few months ago, said the Agriculture Department. The USDA also confirmed infections in five additional herds — three in South Dakota and two in Colorado — raising the U.S. total to 63 herds in nine states.
H5N1 virus was undetected for months in dairy cattle, researchers say
Genetic testing indicates the H5N1 bird flu virus jumped from wild birds to dairy cattle in Texas approximately four months before it was identified in late March, said a nationwide team of researchers. “Continued transmission of H5N1 HPAI [highly pathogenic avian influenza] within dairy cattle increases the risk for infection and subsequent spread of the virus to human populations.”
Bird flu virus likely travels from cow to cow via milk, says USDA
The “primary vector” for transmitting the H5N1 bird flu virus from dairy cow to dairy cow seems to be milk from an infected animal, said the USDA’s chief veterinary officer on Wednesday. Dr. Rosemary Sifford also said the USDA was considering whether to offer compensation to dairy farmers for cooperating in the investigation of the disease and for adopting stronger biosecurity safeguards.
Bird flu found in dairy herds in five states
Bird flu, which killed more than 82 million birds in U.S. domestic flocks in the past two years, has appeared in dairy herds in Idaho, Kansas, Michigan, New Mexico, and Texas, said federal officials. The outbreaks, affecting a relatively small number of cattle, are not expected to affect milk supply or prices at the grocery store.
USDA: Stronger biosecurity reduced spread of bird flu
Fewer than 900,000 birds in domestic flocks have died due to highly pathogenic avian influenza (HPAI) this year, said the Agriculture Department in a review of bird flu outbreaks that date from February 2022.
Worrisome signs of mammal-to-mammal spread of bird flu
The ongoing bird flu outbreak is the largest ever in Europe and North America, and recent reports suggest the disease has passed from mammal to mammal, raising the risk of a spillover into humans, said a U.S. medical journal. The director general of the World Health Organization said that while the risk to people remained low, the reported infections in mink, otters, and sea lions “must be monitored closely.”
Bird flu the cause of high egg prices, says USDA
Egg prices at the grocery store were elevated throughout 2022 due to outbreaks of highly pathogenic avian influenza (HPAI) among egg-laying hens, said USDA economists. “Lower-than-usual shell egg inventories near the end of the year, combined with increased demand stemming from the holiday baking season, resulted in several successive weeks of record-high egg prices."
Bird flu losses break record
A record 50.54 million birds in domestic flocks have died of highly pathogenic avian influenza (HPAI), or were culled to prevent spread of the viral disease since February, according to USDA data.
‘No fowl play’ as Biden pardons Thanksgiving turkeys
In a traditional moment of White House whimsy ahead of Thanksgiving, President Biden pardoned tom turkeys "Chocolate" and "Chip" on Monday. An outbreak of bird flu has driven up turkey prices and crimped supplies for the holiday season.
Bird flu losses now on par with worst U.S. animal disease event
In nine months, nationwide outbreaks of highly pathogenic avian influenza have killed 50.12 million birds in domestic flocks, said USDA data on Wednesday. Losses from HPAI and the culling of infected flocks are now on par with the 2014-15 bird flu outbreak, which the USDA has described as the most significant animal disease event in U.S. history.
Bird flu losses near U.S. record with outbreak on Iowa egg farm
The Agriculture Department has spent $450 million to combat this year’s outbreak of bird flu, but losses among domestic flocks are nearing the record set seven years ago in the largest-ever U.S. animal health emergency. The outbreak has driven up egg prices and tightened the supply of holiday turkeys.
As bird flu losses mount, USDA advises ‘plan for elevated risk’
For the first time, researchers have tracked the movements of a wild duck infected with bird flu, information that could help them come up with disease mitigation strategies against the viral disease, said the U.S. Geological Survey on Wednesday. More than 47.7 million birds in U.S. domestic flocks have died in outbreaks of highly pathogenic avian influenza since February.
More than 47 million birds lost to avian influenza
Bird flu was discovered in a backyard flock in the Albuquerque area, making New Mexico the 42nd state where the viral disease has been confirmed this year, said the Agriculture Department on Thursday.
Bird flu found in 40th state this year
Scientists confirmed a backyard flock of poultry in northwestern Tennessee was infected with highly pathogenic avian influenza (HPAI), part of a resurgence of the disease in the central states. Some 3.37 million birds in domestic flocks have died of bird flu so far this month; nationwide losses during September will be the largest since April.
Ohio is hit hardest as bird flu returns to the Midwest
After a summertime lull, bird flu is back in the Midwest, the heart of U.S. egg and turkey production, with outbreaks at commercial poultry farms in Minnesota and Ohio since Sept. 1. Some 43.85 million birds have been culled this year due to highly pathogenic avian influenza, and one analyst says turkey and egg prices may remain elevated for some time to come.
Poultry exports face potential risks from avian influenza
The risk of another outbreak of avian influenza this fall remains elevated and the stakes for poultry producers couldn’t be higher, with U.S. poultry exports expected to reach record levels in 2022, said a report Tuesday from CoBank's Knowledge Exchange.