Science ❯ Virology

Influenza Viruses

H5N1 Virus H5N1 Strain H5N1 Avian Influenza H5N1 Research Zoonotic Diseases H5N1 Characteristics H5N1 Subtype Pathogenicity Epidemiology

U.S. Flu Season Arrives Weeks Early as Walgreens Sees Big Rise in Cold‑and‑Flu Sales

Health officials urge immediate vaccination to allow two weeks for protection before rising cases and hospital admissions put pressure on care.

Flu Cases Rise Early in Western States, Officials Urge Immediate Vaccination

Bahia Opens Short Universal Flu Campaign as Amapá Declares Health Emergency

Italy Confirms Europe’s First Human H9N2 Bird Flu Case

Italy Confirms Europe’s First Human Case of H9N2 Avian Flu

Japan Confirms H5N1 Outbreak at Hokkaido Poultry Farm, Orders Culling of 190,000 Chickens

Spain Notifies WHO of Suspected Person-to-Person A(H1N1)v Case in Catalonia

H5N1 Bird Flu Confirmed in Chennai Crows as Tamil Nadu Orders Statewide Vigilance

Flu Toll Rises in New England: 6 Pediatric Deaths in Mass., 35 Total in N.H.

Argentina Confirms H3N2 Subclade K in More Provinces as National Tally Reaches 15

Germany Confronts Early Flu Surge as Officials Assure Vaccine Supply

WHO Reports Early Flu Surge Across Europe Driven by A(H3N2) Subclade K

WHO Confirms First Human H5N5 Infection as Washington State Patient Dies

CDC Confirms First Human H5N5 Case as Washington Patient Dies

Miyazaki Confirms High-Path Avian Flu at Hyuga Poultry Farm as Culling Begins

Washington Confirms First Human Case of H5N5 Bird Flu

Washington Confirms First Human H5N5 Bird Flu Case

Spain Confirms H5N1 in Wild Birds as Aragón Reports 250+ Crane Deaths and Imposes New Poultry Curbs

Belgium Orders Poultry Indoors After H5N1 Outbreak as Europe Tightens Controls

Germany’s Bird Flu Surge Intensifies as FLI Elevates Risk and Mass Culls Expand