H5N1 Bird Flu Spreads Across 43 Countries With 1391 Outbreaks Since December 2025 Global Update Titelbild

H5N1 Bird Flu Spreads Across 43 Countries With 1391 Outbreaks Since December 2025 Global Update

H5N1 Bird Flu Spreads Across 43 Countries With 1391 Outbreaks Since December 2025 Global Update

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 Avian Flu Watch: Global H5N1 Tracker

Welcome to Avian Flu Watch: Global H5N1 Tracker, your data-driven update on the worldwide bird flu outbreak. Im here with the latest figures as of early February 2026 from FAO and WHO reports.

Geographic hotspots show intense activity across 43 countries. The United States leads with 174 H5N1 outbreaks since October 2025, affecting 1409 events in poultry, wild birds like bald eagles and pelicans, and mammals including red foxes. Germany follows with 254 outbreaks in chickens, ducks, and wild species like grey herons. The UK reports 124 outbreaks, France 10 with 297 events, and Belgium 10 with 174 in poultry. Asia sees Japan with 15 outbreaks in crows and mallards, the Philippines 1 in chickens and quail, and Vietnam 3 in poultry. Europe dominates with over 2500 combined events in wild waterfowl.

Visualize surging trend lines: FAO data plots a sharp rise from 777 new outbreaks in December 2025 to 1391 since late December across 39 countries, peaking in January 2026. A bar graph of H5N1 cases shows US weekly spikes alongside Europes steady climb, contrasting Asias sporadic pulses. Comparative stats reveal poultry losses exceeding 131 million since 2022 per WOAH, with 2025-2026 waves hitting dairy cattle via clade 2.3.4.4b mutations enabling mammal jumps.

Cross-border transmission patterns trace migratory birds: H5N1 clade 2.3.4.4b spreads via waterfowl from Europe to North America since 2021, now reaching Antarctica with over 50 skua deaths. Intra-species leaps in US Weld County, Colorado, link cows, humans, cats, and raccoons through milk and predation.

Containment shines in localized culls Australias first human case in 2024 recovered via isolation but fails against wild reservoirs. Europes biosecurity reduced summer dips yet outbreaks hit decade highs per Reuters. Failures persist in open dairy barns exposing cattle.

Emerging variants of concern include clade 2.3.4.4b with mammal affinity, B3.13 and D1.1 in dairy cows, and Southeast Asias 2.3.2.1c in human clusters like Cambodias five cases.

Travel advisories urge avoiding poultry markets in hotspots like the US, Europe, and Asia. CDC recommends biosecurity for farm workers; WHO calls for vigilance amid 26 human cases in 2025.

Stay informed and safe.

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