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.
Representative images of histological changes in the small intestine from piglets fed sera from pigs immunized with (a) rSPV-St, (b) inactivated SQ2014, (c) wtSPV, or (d) PBS, followed by challenge with PEDV SQ2014. The samples were obtained 3 days post-challenge. The intestinal tissue from a normal healthy pig (e) was included for comparison. The tissues were stained with hematoxylin and eosin (HE). Magnification, 100×
