Los Angeles

Epidemiological Brief

Los Angeles holds a MEDIUM risk score (26.8), driven mainly by influenza and, to a lesser degree, dengue and COVID-19. Influenza ILI% of 16.8% reflects active transmission in California, while dengue incidence of 0.1 per 100,000 represents the state's imported case burden in a region with limited local vector establishment. Measles and mpox components are low-level. SoFi Stadium will host multiple high-profile matches; the high volume of international arrivals from measles-endemic regions underscores the importance of vaccination verification. Pertussis (1.1 per 100,000) contributes a background respiratory disease signal. LACDPH should strengthen syndromic surveillance linkages between venue health posts and the county early-warning dashboard. Influenza point-of-care testing and antiviral prescribing pathways should be available on-site. Unvaccinated fans traveling from measles-outbreak countries should be screened and offered vaccination. Air quality and heat management protocols remain co-occurring public health priorities for the LA venue in June.

Model v2.1.0 · Updated June 11, 2026