⚠Situational awareness tool — not an operational trigger. Any mobilization requires direct WHO verification and validation through your institutional protocol.

HIGH RISKStable

Avian Influenza

📍 United States

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Confirmed cases

Deaths

Case fatality rate

0.0%

Cumulative cases since outbreak start — USDA APHIS bulletin dated 2026-07-31

Report date : 2026-07-31

Official report date — in isolated zones, field onset typically precedes this by days to weeks.

The exact nature of this date (week of confirmation, transmission period, or bulletin publication date) is not specified by the source.

Region : americas

USDA APHIS — H5N1 HPAI confirmed in 29 Dairy Milking Cows herds in Utah. Latest detection: 2026-07-31. Source: https://www.aphis.usda.gov/livestock-poultry-disease/avian/avian-influenza/hpai-detections/hpai-confirmed-cases-livestock

Case trend

Focal Point GuidanceSTANDARD MONITORING

First actions

→Log in national surveillance system — continue routine monitoring
→Compare with seasonal baseline for this region and disease
→Include in weekly surveillance briefing — escalate if trend worsens (▲ cases or CFR)

Source: USDA APHIS↗

🔄Last checked by HealthWatch : 26d ago

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Cite this page (Vancouver)

HealthWatch Global. Avian Influenza outbreak — United States [Internet]. 2026-07-31 [cited 2026 Aug 26]. Available from: https://healthwatch-global.com/en/outbreak/d2403b2f-066c-4ad2-85b7-eaf65042bd98. Data source: USDA APHIS.

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