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

JUL 01

Maricopa County has recorded four deaths from West Nile virus so far in 2026.

JUL 01

West Nile virus peaked in the United States in 2003, when nearly 10,000 cases were reported.

JUL 01

Since 2004, the average number of West Nile virus cases reported to the CDC by the end of June is around 10.