How Likely Is Bird Flu to Spread among Humans?
Briefly

H5N1 avian influenza, discovered in 1996, has significantly altered its behavior by starting to infect cattle. This development is especially concerning as H5N1 has historically only affected birds, with occasional reports of fatal human infections. Experts, including microbiologists and infectious disease specialists, express shock at this leap, as influenza has never been known to infect cattle before. Close contact with infected dairy cows presents a risk for humans, increasing the likelihood of the virus mutating into a more transmissible strain with pandemic potential.
H5N1 avian influenza, discovered in 1996, has started infecting cattle, an unexpected development that presents significant concerns for both animal health and public safety.
The continual circulation of H5N1 in cows raises alarms among experts, especially since it can potentially mutate and present a risk for human transmission.
Read at www.scientificamerican.com
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