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.
Colonization of Fischer 344 rat spleens with F. tularensis Schu S4. Two groups of rats were challenged by the i.v. route with an F. tularensis Schu S4 Himar1 transposon library. At 4 h or 24 h postchallenge, rats were humanely culled and spleen bacterial burden was determined.
