Storyline
US mosquito-borne virus outbreak 2026
One page that accretes the verified record as the story develops. Every fact keeps its date and its sources.
2 DAYS
10 FACTS
2 EVENTS
1 SOURCES
FIRST ENTRY SEP 03
SEP 04 · Day 2
Florida fights mosquitoes spreading dengue fever
SEP 03 · Day 1
Deadly mosquito-borne virus claims first life in major US city
The CDPH has sprayed insecticide in multiple Chicago community areas including Beverly, Burnside, Chatham, and others.
Most West Nile cases are reported in August and September.
For most people, West Nile produces mild symptoms or none at all, according to the CDC.