Norovirus Prevention Guide for San Francisco Food Service

Employee Health Screening & Exclusion Protocols

The San Francisco Department of Public Health requires food handlers showing symptoms of norovirus—vomiting, diarrhea, or abdominal cramps—to be excluded from work until 48 hours after symptoms cease. Implement daily symptom check-ins before shifts and maintain a documented exclusion log. Staff working in high-risk areas (dishwashing, ready-to-eat preparation) must report any gastrointestinal illness immediately. Train all employees that norovirus spreads rapidly through fecal-oral contact, even from asymptomatic individuals, making early reporting critical. Provide sick leave policies that don't penalize reporting, encouraging transparency over presenteeism.

Sanitation & Environmental Controls

Norovirus survives on surfaces for hours and resists standard detergents; the CDC and SFDPH recommend using EPA-approved disinfectants containing bleach (100–1,000 ppm depending on surface type) or quaternary ammonium compounds rated against norovirus. Focus on high-touch zones: door handles, POS terminals, prep surfaces, and bathroom fixtures. Implement hourly restroom cleaning during peak service and after any illness incidents. Use separate color-coded cleaning cloths and tools for bathrooms to prevent cross-contamination. Ensure handwashing stations have hot water (at least 100°F), soap, and single-use towels; verify compliance during daily safety audits.

Food Handling & Temperature Management

While norovirus is primarily transmitted through contaminated surfaces and person-to-person contact, prevent secondary spread by enforcing strict hand hygiene after bathroom breaks, vomiting incidents, or diaper changes. Cook shellfish (particularly oysters and clams) to an internal temperature of 145°F for 15 seconds, as this partially reduces norovirus viability; however, heat does not guarantee pathogen elimination. Store raw shellfish at 41°F or below and source from SFDPH-approved suppliers with proper certification. Maintain cold-chain integrity for all ready-to-eat foods. Document temperature logs daily, and use Panko Alerts to track recalls and outbreaks in real-time so you can adjust sourcing or protocols immediately if norovirus is detected in your supply chain.

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