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On July 31, a study found 2 farmworkers who had not been tested for bird flu had antibodies against it. [89] On August 9, the Colorado Department of Public Health reported bird flu in domestic cats, including indoor-only cats. [90] In late August, H5N1 had spread to dairy cow herds in California. [91]
The concerning bird flu outbreak that has spread to four humans so far as it expands quickly in the U.S. has jumped to dozens of species, infecting mammals in at least 31 states.
The virus can spread rapidly through poultry flocks and among wild birds. [3] An estimated half billion farmed birds have been slaughtered in efforts to contain the virus. [2] Symptoms of A/H5N1 influenza vary according to both the strain of virus underlying the infection and on the species of bird or mammal affected.
In September, Egypt and Sudan joined the list of nations seeing a resurgence of bird deaths due to H5N1. [citation needed] In November and December, South Korea and Vietnam joined the list of nations seeing a resurgence of bird deaths due to H5N1; February/March 2006 - A dead cat infected with the H5N1 bird flu virus was found in Germany. [26]
The USDA has so far put more than $2.1 billion into reimbursing poultry and dairy farmers for losses due to the bird flu and other measures to control the spread on farms.
For more on the latest bird flu outbreak: Bird flu could merge with seasonal flu to make mutated virus that could spread among humans, CDC warns. Almost a dozen people have tested positive for ...
Although a wide variety of bird species have been shown to contract and spread Influenza A virus subtype H5N1, from waterfowl to poultry and birds of prey, mammalian infections have been of particular interest to researchers due to their potential to develop mutations that increase the risk of mammal-to-mammal spread and transmission to and among humans.
The bird flu that’s been making news in the United States is a virus called H5N1. Some flu viruses carried by birds cause only mild infections and are classified as low-pathogenic viruses.