Tuesday, November 10, 2026

PNAS: Rare recovery of reassortants between contemporary clade 2.3.4.4b H5N1 viruses and human influenza A viruses in vitro

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  Coinfection leading to Antigenic ` Shift'   or Reassortment  #19,408 Last week, in  When Flu Viruses Collide , we looked at the concer...
Monday, November 09, 2026

Nature Sci Reports: The effect of the time of day of influenza vaccination on antibody and T-cell responses in older adults

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Photo Credit - CDC PHIL #19,407 Ten years and just over 8,000 blogs ago, in Vaccine: Taking Your Best Shot , we looked at a study published...
Sunday, November 08, 2026

IJID Review Article: The H5N1 avian influenza threat: a European Perspective on Research Gaps and State of Preparedness

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  #19,406 While the next pandemic could arise from a wide variety of sources (see WHO 2024 Pathogens Prioritization Report ), the most obvio...
Saturday, November 07, 2026

Washington State Adds 3 More H5N1 Infected Herds - HPAI North American Roundup

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  #19,405 Since last Monday , Washington State has reported 3 more infected dairy herds (2 in Yakima County, 1 in Benton) , bringing to 43...

South Korea: MAFRA Reports 2 Outbreaks of HPAI H5N9 in Poultry & Ducks

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  #19,404 Over the 2024-2026 flu season, South Korea's MAFRA Reported Increased Infectivity & Pathogenicity of last Year's Avian...
Friday, November 06, 2026

EM&I: Emergence of a Distinct Evolutionary Cluster of Clade 2.3.4.4b H5 Viruses in China during 2024-2025 with Rapid Evolution and Antigenic Divergence

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  Antigenic Distance Map #19,403 As we've discussed often over the years , there are scores of genotypes of HPAI H5 clade 2.3.4.4b viru...