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Wyoming is reported the first incident An outbreak of avian influenza in dairy cattle has spread to 12 states.
State officials said the case was confirmed in samples received by the Wyoming State Veterinary Laboratory last week. The U.S. Department of Agriculture's National Veterinary Services Laboratory later confirmed the positive cases.
As more and more cows become sick, a major concern facing dairy farmers is production disruption due to milk loss. Wyoming state veterinarian Hallie Hasel said in a statement. In Iowa, where the first avian flu case was reported in a dairy cow last week, officials are urging: USDA rewards farmers Loss of milk production or cost of culling cows.
“Highly pathogenic avian influenza continues to pose a serious threat to the livelihoods of our livestock and the farmers who care for them,” Iowa Department of Agriculture Secretary Mike Naig said in a statement. “This is something the entire farming community will have to work together on. We all have a stake.”
Health and agriculture agencies have been monitoring the situation since before late March, when the H5N1 virus emerged on a dairy farm in Texas. Since then, about 90 cases of avian influenza have been discovered in cattle. USDA's Online Tracker As of June 11th. Three U.S. dairy workers also contracted the virus, one of whom showed symptoms. Respiratory symptoms.
Although many cows recovered after treatment, some did not. Dozens of infected cattle in five states have died from the virus or slaughter. Reuters reported.
Highly pathogenic avian influenza is so fatal to wild birds and poultry that farmers have to eradicate flocks to contain its spread, but this has not been so severe in dairy cattle. However, this may change over time and as virus variants arise.
Recently, Researchers infected six ferrets It is linked to one of the avian flu strains found in Texas farm workers as part of a study conducted by the Centers for Disease Control and Prevention (CDC). All six ferrets died from infection.
This is noteworthy for epidemiologists who consider ferrets an animal model alternative to humans. Following the study, the CDC noted that H5N1 spreads efficiently between ferrets in direct contact with the virus, but not through respiratory droplets as seen in seasonal flu. The risk to humans remains low.
Bird flu symptoms in cattle range from fever and loss of appetite to changes in urine and thick or discolored milk. The pasteurization process and cooking inactivate the virus in milk and ground beef, keeping the threat to the general public low, but farm workers directly exposed to livestock are at higher risk.
