Storyline
2026 West Nile virus season
One page that accretes the verified record as the story develops. Every fact keeps its date and its sources.
1 DAYS
10 FACTS
1 EVENTS
1 SOURCES
FIRST ENTRY JUL 01
JUL 01 · Day 1
CDC warns of strong, early West Nile virus season
Maricopa County has recorded four deaths from West Nile virus so far in 2026.
The CDC said it had confirmed at least 48 cases of West Nile virus as of June 30.
Of Arizona's 32 total West Nile virus cases, 29 are in Maricopa County.