Overview
- Los Angeles County reported Monday that it has recorded 100 West Nile virus cases this year and five deaths, with most diagnosed patients requiring hospital care.
- Health officials say infections are clustered in East Los Angeles, the San Fernando Valley and the South Bay and that nearly all symptomatic patients have had severe illnesses affecting the brain or spinal cord.
- National data cited by the CDC show 671 cases across 42 states this year, indicating elevated West Nile activity beyond Southern California.
- Denver confirmed its first human West Nile case of the year and warned that risk continues until the first hard frost, urging residents to take simple precautions to avoid mosquito bites.
- With no vaccine or specific antiviral treatment, public‑health agencies are expanding mosquito trapping, pooled testing, targeted larvicide and adulticide operations and urging residents to use EPA‑registered repellents, repair screens and eliminate standing water because reported counts likely understate true infections.