Figure 6-9.
One day's death toll of neonatal calves from a dairy farm suffering high mortality in cattle of all ages during an epidemic caused by a highly virulent S. typhimurium strain.
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.