infections
Epidemic Typhus
Brill Zinsser Disease
Brill-Zinsser disease is a recurrence of epidemic typhus, sometimes years after the first infection. Some of the organisms that cause epidemic typhus remain in the body. They may become reactivated if a person's Overview of Immunodeficiency Disorders . Symptomsof Brill-Zinsser disease are almost always mild and resemble those of epidemic typhus. The fever lasts about 7 to 10 days. People may not have a rash. Diagnosisandtreatmentof Brill-Zinsser disease are similar to those of epidemic typhus. 