Houston

Epidemiological Brief

As of 27 July 2026, Houston is classified at LOW epidemic risk (composite score 21.4). Pertussis remains the leading signal, with an incidence of 2.33 cases per 100,000 and an adjusted score of 36.6 — the highest single-disease contributor at this venue. COVID-19 activity is modest at 0.57 cases per 100,000 and influenza ILI prevalence is low at 1.1%. Travel-associated dengue cases are present at 0.05 cases per 100,000; although local transmission is uncommon, Houston's subtropical climate and high World Cup fan traffic from dengue-endemic regions justify continued monitoring — a dengue watch signal is active. A hantavirus watch signal is also active for the Houston area; while person-to-person transmission does not occur, outdoor and rodent-exposed venues should implement standard rodent-control measures. Measles incidence is low at 0.11 cases per 100,000, and mpox is detected at 0.11 cases per 100,000. Wastewater-based epidemiology (ATCP-73RE) is actively monitoring COVID-19 and influenza. International arrivals are substantial at 7,040. Warm and humid conditions (29 °C, 80% humidity, no precipitation) support respiratory and vector-borne pathogen circulation. Recommended actions include pertussis awareness and MMR vaccination verification, enhanced Aedes vector surveillance, rodent-control protocols at outdoor venues, dengue rapid testing for febrile travellers, and standard heat-illness prevention messaging.

Model SCEME v3.1 · Updated July 27, 2026

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