Equine Alerts

West Nile Virus in Maryland

As of September 2026, Maryland has 1 West Nile Virus alert in the past 30 days (1 confirmed case).

Risk Level
🟡 Moderate
Isolated cases — monitor the situation
Cases (30 days)
1
Total Cases
6
Counties Affected
4

Most recent West Nile Virus alert in Maryland: Sep 24, 2026

West Nile Virus Alerts in Maryland

Cecil, Maryland
Sep 24, 2026 · active
1
confirmed
s, Maryland
Oct 15, 2025 · voluntary quarantine
1
confirmed
s, Maryland
Oct 3, 2025 · active
1
confirmed
Frederick, Maryland
Sep 24, 2025 · active
1
confirmed
Carroll, Maryland
Aug 28, 2025 · active
1
confirmed
Frederick, Maryland
Jul 25, 2024 · active
1
confirmed

About West Nile Virus

Mosquito-borne virus causing neurological disease

Full West Nile Virus guide →
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