Resources with keywords: HCW vaccination
Sporadic H5N1 human infections continue; all linked to direct animal contact. Agricultural research workers, poultry handlers, and veterinary staff conducting field work face the highest occupational risk. Clade 2.3.4.4b dominant globally. Research staff working with live avian influenza virus must comply with FSAP registration requirements (H5N1 is a Select Agent). No sustained human-to-human transmission detected as of 18 May 2026.
Cumulative 172 influenza-associated pediatric deaths this season; ~85% in unvaccinated or incompletely vaccinated individuals. HCWs remain at occupational risk from undiagnosed febrile patients. Hospitals should verify HCW influenza vaccination rates. Influenza A(H3N2) subclade K dominates nationally; influenza B increasing in recent weeks. End-of-season transition period warrants continued HCW respiratory precautions.
