Relapsing fever classification
Relapsing fever Microchapters |
Diagnosis |
---|
Treatment |
Case Studies |
Relapsing fever classification On the Web |
American Roentgen Ray Society Images of Relapsing fever classification |
Risk calculators and risk factors for Relapsing fever classification |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Classification
There are two major forms of relapsing fever:
- ENDEMIC TICK BORNE
- EPIDEMIC LOUSE BORNE
- Tick-borne Relapsing Fever = Endemic Relapsing Fever
- Sporadic cases
- Transmitted by soft body ticks (vectors) from small mammal reservoir
- Ticks can multiply and infect new human hosts
- Tick-borne relapsing fever (TBRF) is transmitted by the Ornithodoros tick and occurs in Africa, Spain, Saudi Arabia, Asia, and certain areas in the western United States and Canada. The bacteria species associated with TBRF are Borrelia duttoni, Borrelia hermsii, and Borrelia parkerii.
- Louse-borne Relapsing Fever = Epidemic Relapsing Fever
- Transmitted person-to-person by human body lice (vectors) from an infected human reservoir
- Infect host only when louse is injured, e.g during scratching, Therefore, a single louse can only infect a single person. Lice leave host that develops a fever and seek normal temperature host.
- Louse-borne relapsing fever (LBRF) is most common in Asia, Africa, and Central and South America. The bacteria species associated with LBRF is Borrelia recurrentis.