Norovirus Prevention in San Antonio Food Service

San Antonio & Texas Health Department Requirements

The San Antonio Metropolitan Health District (SAMHD) enforces food safety rules under Texas Administrative Code Title 25, Chapter 229. All food service establishments must implement hand-washing protocols, illness policies, and cleaning procedures specifically designed to prevent norovirus transmission. Employees showing symptoms of gastroenteritis (vomiting or diarrhea) must be excluded from work for 24 hours after symptoms resolve. SAMHD conducts routine inspections and can issue violations for non-compliance; serious outbreaks may result in temporary closure orders and reporting to the Texas Department of State Health Services (DSHS).

High-Risk Foods & Common Transmission Routes

Norovirus spreads primarily through contaminated shellfish (oysters, clams, mussels), ready-to-eat foods, and person-to-person contact in kitchen environments. Raw oysters harvested from contaminated waters are a documented risk; San Antonio restaurants serving shellfish must source from FDA-approved suppliers and maintain chain-of-custody documentation. Cold foods (salads, sandwiches, desserts) and beverages are frequently involved in outbreaks because they bypass cooking temperatures that would kill the virus. Food handlers who work while ill and don't maintain proper hand hygiene are the primary transmission vector in restaurant settings.

Prevention Protocols & Outbreak Reporting

Implement a no-work-when-ill policy, enforce 20-second handwashing at multiple points (after restroom use, before food prep, after breaks), and use separate utensils and cutting boards for ready-to-eat foods. Train all staff on recognizing symptoms and document illness incidents. Under Texas law, food service establishments must report suspected norovirus outbreaks to SAMHD within one business day if two or more people become ill; SAMHD then notifies DSHS and the CDC as part of national surveillance. Maintain detailed employee schedules and food production logs to support outbreak investigations and demonstrate compliance during health department inspections.

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