Rickettsiae Flashcards
1
Q
what are the Common features?
A
obligate intracellular bacteria
Not picked up on gram stain
Animal (rodents) and arthropods serve as their reservoirs
Transmitted by arthropod vectors (ticks, mites,lice)
humans are accidental hosts
2
Q
what symptoms indicate rickettsiae infection?
A
Headache, fever, myalgias + RASH
3
Q
what are the Species of medical importance rickettsiae?
A
- Rickettsia rickettsii - Rocky mountain spotted fever *
- Rickettsia akari – Rickettsial pox
- Rickettsia prowazekii – Epidemic typhus
- Rickettsia typhi – Endemic typhus
- Orientia tsutsugamushi - Scrub typhus
