H5N1 Bird Flu Update: 71 US Cases, Low Wastewater Activity, Argentina Outbreak Confirmed

Bird Flu Bulletin: Daily H5N1 Update Friday, March 6, 2026. Good evening, this is your Daily H5N1 Update. Im hosting todays bulletin with the latest on the avian influenza outbreak. Top Stories from the last 24 hours. First, CRV Science reports low viral activity in US wastewater monitoring, with H5 genetic material at just 1.9 percent of sites nationwide in mid-February 2026 data released yesterday, signaling no surge in community transmission. Second, Argentinas SENASA confirmed a new HPAI H5 outbreak in a commercial poultry facility in Ranchos, Buenos Aires on February 23, with all birds culled and exports suspended, per PoultryMed. Third, no new US human cases reported by CDC, maintaining the national total at 71 since 2024. Case numbers show no change from yesterday: 71 confirmed US human infections, with 41 tied to dairy herds, 24 to poultry farms, 3 to other animals, and 3 unknown sources, according to CDC situation summary. Dairy cases predominantly mild conjunctivitis from B3.13 genotype exposure. Two fatalities stand: Louisiana in January 2025 from D1.1 after backyard flock contact, and Washington in November 2025, the worlds first H5N5 human case. Health authorities: CDC emphasizes immediate oseltamivir for exposed patients with symptoms, regardless of tests, due to unreliable rapid diagnostics for novel strains. USDA notes over 1,000 dairy herds affected in 17 states and more than 168 million birds depopulated across all 50 states and Puerto Rico. Now, a brief word from Dr. Elena Vasquez, avian flu epidemiologist at CRV Science. In a recent interview, she said: The B3.13 genotype in dairy cattle shows mammalian adaptations like PB2 mutations, eroding pandemic barriers, but human cases remain occupational with no transmission chains. Vigilant One Health surveillance is key. Looking ahead, expect CDC targeted surveillance update on the first Friday of March. Monitor wild bird migrations reseeding farms, and watch for dairy testing expansions amid low wastewater signals. Global eyes on Argentinas outbreak impact. Thank you for tuning in. Come back next week for more. This has been a Quiet Please production. For me, check out Quiet Please Dot A I. For more http://www.quietplease.ai Get the best deals https://amzn.to/3ODvOta