Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(a) Intensity of viral shedding associated with influenza A virus infections, and (b) probability of virologic confirmation of influenza A virus infection in a subject by day of collection of a nose and throat swab. Based on data from (28).
