Norovirus Prevention Guide for Portland Food Service

Sanitation Protocols for Norovirus Control

Norovirus requires specific sanitation measures because it resists standard chlorine-based sanitizers and survives on surfaces for extended periods. The Oregon Food Safety Rules mandate using EPA-approved disinfectants effective against norovirus, including quaternary ammonium solutions at proper concentrations and 0.5% bleach solutions for high-touch surfaces. Food contact surfaces must be sanitized every 4 hours minimum, while bathrooms and employee break areas need hourly disinfection during suspected or confirmed outbreaks. Train staff to clean and disinfect door handles, payment terminals, sneeze guards, and restroom fixtures—common transmission points identified by Multnomah County Health Department investigations.

Employee Health Screening and Exclusion Policies

The Multnomah County Health Department requires food service employees showing gastrointestinal symptoms to be excluded from work until 48 hours after symptoms resolve—a critical measure because infected staff are the primary source in 75% of documented foodservice norovirus outbreaks. Establish mandatory health attestations at shift start, asking employees about diarrhea, vomiting, or stomach pain in the past 24 hours. Per OHA guidance, employees must report illness to management immediately; never permit symptom-relief approaches that allow continued work. Document all health screenings and exclusions in writing, maintaining records for health department review during inspections or outbreak investigations.

Temperature Control and Food Handling Best Practices

While norovirus primarily spreads person-to-person in food service, contaminated food—especially ready-to-eat items like salads and desserts—can transmit infection. Maintain cold foods at 41°F or below and hot foods at 135°F or above per Oregon Food Safety Rules; use calibrated thermometers checked daily. Implement strict handwashing protocols: 20 seconds with soap and warm water after restroom use, before food preparation, and after handling soiled items. Avoid bare-hand contact with ready-to-eat foods; use utensils or gloves changed frequently. During confirmed outbreaks, Multnomah County may require additional measures like excluding employees with symptoms or restricting certain menu items—stay informed via the county's food safety alerts and outbreak notifications.

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