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.
Periodical. Soper, Fred L., W. A. Davis, F. S. Markham, and L. A. Riehl. "Typhus Fever in Italy, 1943-1945, and its Control with Louse Powder." American Journal of Hygiene 45, 3 (May 1947): 305-334. Article. 26 Images.. American Journal of Hygiene