Relapsing Fever

Question 1

Borrelia recurrentis

Answer 1

Epidemic relapsing fever- acute febrile septicemic illness
spirochete
Transmitted by bite of infected louse.
Humans are the only reservoir
During the afebrile period, spirochetes disappear from the blood and change their antigenic coats.

Question 2

Borrelia spp.

Answer 2

Endemic relapsing fever
Transmitted from rodents and other animals by the bite of an infected tick
Fatal infections,spleen ins enlarged ad contains microabscesses. Focal hemorrhages involve many organs.