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A human H5N1 pandemic might emerge with initial lethality resembling that over-50% case fatality now observed in pre-pandemic H5N1 human cases, rather than with the still-high 1-2% seen with the Spanish flu or with the lower rates seen in the two more recent influenza pandemics. [48] As a WHO working group noted,
The spread of avian influenza in the eastern hemisphere. According to the United Nations FAO, wild water fowl likely plays a role in the avian influenza cycle and could be the initial source for AI viruses, which may be passed on through contact with resident water fowl or domestic poultry, particularly domestic ducks. A newly mutated virus ...
Avian influenza, also known as avian flu or bird flu, is a disease caused by the influenza A virus, which primarily affects birds but can sometimes affect mammals including humans. [1] Wild aquatic birds are the primary host of the influenza A virus, which is enzootic (continually present) in many bird populations.
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.
The recent bird flu infection in a dairy worker in Texas has public health ... H5N1 infections outside the country have had a high mortality rate. Four cases in Cambodia were reported ...
Bird flu, a.k.a. H5N1, has dominated headlines in the U.S. for months.But while this illness is known worldwide for having a high mortality rate, the vast majority of infections in America have ...
H5N8 is a subtype of the influenza A virus (sometimes called bird flu) and is highly lethal to wild birds and poultry. [1] H5N8 is typically not associated with humans. However, seven people in Russia were found to be infected in 2021, becoming the first documented human cases.
The flu strain's ability to lodge in the brain and nervous system is one possible reason for "higher mortality rate in some species,” said Amy Baker, an Iowa-based U.S. Department of Agriculture ...