When does viral shedding occur in influenza?

Updated: Apr 23, 2019
  • Author: Hien H Nguyen, MD, MS; Chief Editor: Michael Stuart Bronze, MD  more...
  • Print
Answer

Viral shedding occurs at the onset of symptoms or just before the onset of illness (0-24 hours). Shedding continues for 5-10 days. Young children may shed virus longer, placing others at risk for contracting infection. In highly immunocompromised persons, shedding may persist for weeks to months. [16]


Did this answer your question?
Additional feedback? (Optional)
Thank you for your feedback!