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.
Three endoscopic pictures of cannulated ileums. Picture A is of a normal ileum from the control negative calf 132. Picture B is from calf 129 (experimentally inoculated) with little to no changes in the ileal mucosa, and picture C shows the corrugated thickened appearance of the ileal mucosa from a naturally infected cow 1181 with clinical Johne's disease.
