CDC Travelers' Health Information on Typhus Fevers: Brief information from the U.S. Centers for Disease Control and Prevention.
Epidemic Louse-Borne Typhus Fever: Information about the only rickettsial disease that causes explosive epidemics in humans. The fever, caused by Rickettsia prowazekii, is transmitted by the human body louse (Pediculus humanus corporis).
Murine Typhus (Fleaborne Typhus): FAQ from the Texas Department of Health.
Scrub Typhus: Detailed information about this acute, febrile, infectious illness caused by Rickettsia tsutsugamushi and transmitted by trombiculid mites.
Typhus: Information about all three types - epidemic louse-borne, scrub, and endemic (murine) typhus.
Typhus Disease Profile: Brief information about louse-borne typhus.
Typhus Fever (Flea-borne) Fact Sheet: FAQ from the Virginia Department of Health.
Typhus: AHealthyMe.com: Factsheet on the four main types of typus.