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.
Percentage resistance to ceftiofur (n = 483), cephalothin (n = 483), tetracycline (n = 483), and sulfadimethoxine (n = 480) in Klebsiella species isolates during a 12-yr period. Percentage resistance was calculated as the number of isolates resistant to a specific antimicrobial divided by the total number of isolates tested for that antimicrobial.
