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.
There was moderate to high antigen expression for pH1N1 and H5N1 on 1 and 4 dpi with associated lesions characterized by severe DAD and no expression and lesions for H3N2. HE and immunoperoxidase counterstained with hematoxylin, 400×.
