H5N1 bird flu is evolving to better infect mammals, CDC study suggests Rising H5N1 bird flu cases in the U.S. prompted the CDC to study the virus in ferrets, revealing it may have the potential to spread and cause severe symptoms in other mammals. Kamal Nahas Live Science

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Surveillance study traces COVID-19's impact on global flu patterns and evolution Seasonal influenza epidemics impose substantial burdens on health care systems and cause >5 million hospitalizations of adults each year. The current approach to influenza vaccine development requires ... University of Oxford Medical Xpress

Seasonal influenza epidemics impose substantial burdens on health care systems and cause >5 million hospitalizations of adults each year. The current approach to influenza vaccine development requires comprehensive surveillance of circulating strains, which are constantly moving from continent to continent....