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H5N1

Highly pathogenic avian influenza subtype; infecting US dairy cattle since 2024, now resurging in Idaho in May 2026.

5 of 5 entries (5 events, 0 interactions)

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#11 May
#11 May

Detected in Idaho dairy herds, ending a five-month absence of US dairy cattle detections

Pandemics and Biosecurity: Idaho dairy H5N1 breaks five-month US lull
#11 Feb

Killed a Bangladesh child on 1 February via household poultry contact; caused 3 Cambodian human cases in 2026

Pandemics and Biosecurity: Bangladesh and Cambodia keep the poultry H5N1 line