CVS infections Flashcards
1
Q
Scrub Typhus.
A
Most common Rickettsial disease in India.
-Etiological agent: Orientia tsutsugamushi
-Vector: Larva of trombiculid mites (Chiggers)
Aka Chiggerosis
-Reservoir: Rodents
Clinical features:
1) Triad- Eschar, Regional LANP, Maculopapular rashes
2) Non specific symptoms- Fever, headache, myalgia
3) Severe cases- Encephalitis, interstitial pneumomia
Epidemiology: Zoonotic tetrad
1) Trombiculid mites
2) Scrub vegetation
3) Rodents
4) Wet season
- Tsutsugamushi triangle
Lab Diagnosis
1) Serology (mainstay): Weil-Felix (nonspecific), IFA (gold std), ELISA
2) Molecular: PCR
