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A/H5N1 virus can also infect mammals (including humans) that have been exposed to infected birds; in these cases, symptoms are frequently severe or fatal. [2] A/H5N1 virus is shed in the saliva, mucus, and feces of infected birds; other infected animals may shed bird flu viruses in respiratory secretions and other body fluids (such as milk). [3]
H5N1 pre-pandemic vaccines exist in quantities sufficient to inoculate a few million people [4] and might be useful for priming to "boost the immune response to a different H5N1 vaccine tailor-made years later to thwart an emerging pandemic". [5] H5N1 pandemic vaccines and technologies to rapidly create them are in the H5N1 clinical trials ...
The epicenters of both the Asian influenza pandemic of 1957 and the Hong Kong influenza pandemic of 1968 were in Southeast Asia, and it is in this region that multiple clades of H5N1 influenza virus have already emerged. The Asian H5N1 virus was first detected in Guangdong Province, China, in 1996, when it killed some geese, but it received ...
Most human cases of bird flu in North America have been mild, a fact that’s underscored by a new study of the first 46 confirmed human H5N1 infections in the United States this year.
Since March, the U.S. Centers for Disease Control and Prevention has said that 52 people have been infected by the H5N1 virus. Dairy cattle were the source for 30 of those cases, poultry for 21.
A second California child has tested positive for H5N1 bird flu in Marin County; confirmation is needed from the CDC. ... mild respiratory symptoms, and no one else in the child's family or day ...
New Scientist said that an H5N1 virus infecting a human could acquire all the abilities it needs to become a pandemic virus by swapping genes with a human virus infecting the same individual. [ 100 ] On December 6, the USDA announced a new mandate to test the national milk supply for bird flu as part of efforts to combat the virus's spread ...
H5N1 influenza virus is a type of influenza A virus which mostly infects birds. H5N1 flu is a concern because its global spread may constitute a pandemic threat. The yardstick for human mortality from H5N1 is the case-fatality rate (CFR); the ratio of the number of confirmed human deaths resulting from infection of H5N1 to the number of those confirmed cases of infection with the virus.