Exposure / Risk
What should you do after norovirus exposure?
90-Second Answer
Last updated June 28, 2026
Short answer
After possible norovirus exposure, wash hands well, avoid preparing food for others if symptoms begin, clean contaminated areas, and watch for symptoms.
What it means
This site cannot decide personal risk. Norovirus symptoms often appear within 12 to 48 hours, and dehydration can be the main concern when vomiting or diarrhea is intense.
What to know
If you become sick, avoid close contact where possible and follow official guidance about staying home, food preparation, and cleaning.
When to check official guidance
Check CDC prevention guidance and contact a healthcare professional if symptoms are severe or dehydration is a concern.
Sources
Hantavirus Now summarizes external public health information in plain language. Source links open in a new tab.