24. Family Rickettsiaceae Flashcards
1
Q
Spp. under the genus Orientia
A
Orientia tsutsugamushi
Formerly classified as Rickettsia
2
Q
Microscopic appearance of Rickettsia
A
Gram-negative-like cell wall
Contains LPS
3
Q
Rickettsia has no apparent genes for
A
Sugar metabolism
Lipid synthesis
Amino acid synthesis
4
Q
Groups of Rickettsia according to antigens
A
Spotted fever group
Typhus group
Scrub typhus group
5
Q
Disease caused by Rickettsia
A
Rocky Mountain Spotted Fever (RMSF)
6
Q
Principal reservoir of R. rickettsii
A
Hard tick
7
Q
MOT of RMSF
A
Bite of an infected tick
8
Q
Major laboratory test for Rickettsia
A
Serology:
- Weil-Felix test
- Immunofluroscent antibody (IFA) reagent
9
Q
Diagnosis for Rickettsia in skin biopsies
A
Fluorescent
PCR
10
Q
Genera under the Family Rickettsiaceae
A
Orientia
Rickettsia