San Francisco

Epidemiological Brief

As of 27 July 2026, San Francisco is classified at LOW epidemic risk (composite score 9.6). Influenza-like illness is the primary signal at 3.9% ILI prevalence (14.1% adjusted), consistent with California's summer influenza pattern. Pertussis incidence stands at 1.13 cases per 100,000. Mpox is detected at 0.11 cases per 100,000, with the adjusted contribution attenuated by the mitigation factor. COVID-19 activity is low at 0.55 cases per 100,000. Measles incidence is very low at 0.01 cases per 100,000. Dengue is listed in the disease set but carries zero adjusted contribution, indicating no meaningful local or travel-associated signal at this venue at this time. Wastewater-based epidemiology is actively monitoring COVID-19 and influenza through ATCP-73RE and a supplementary local sensor (wbe score 9.52). International arrivals number 130. Mild coastal conditions (17 °C, 82% humidity, no precipitation) present minimal vector-borne risk. Recommended public health actions include influenza surveillance and rapid testing at all fan medical posts, pertussis outbreak readiness in coordination with San Francisco Department of Public Health, MMR vaccination verification for international travellers, mpox clinical screening pathways at all event medical facilities, and standard traveller health advisories covering respiratory hygiene and dengue prevention for the duration of the tournament.

Model SCEME v3.1 · Updated July 27, 2026

Please consult a local doctor or pharmacist for guidance and medication.