Norovirus typically has an incubation period of 24–48 hours, but can remain detectable in stool for weeks, with a median time to loss of detectable virus of about one month.
Notes on verification
Confirmed by CDC clinical guidance and peer-reviewed studies on viral shedding duration; consistent across multiple independent sources. [tier=bronze indep_score=0.539 clusters=2 claim_tier=notable]
Sources
- Ten Interesting Things About Norovirus Worth Knowing (seed:health_and_medicine)
- https://www.cdc.gov/norovirus/hcp/clinical-overview/index.html (corroboration)
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3722520/ (corroboration)