A patient presented with interstitial pneumonia,denied being bitten by insects.Of the following rickettsial diseases, which could have been caused without an insect bite?
- Since the patient denied of being bitten by insects, the most likely rickettsial disease is Q fever. - Since out of 4 option only Q fever has no ahropod transmission . - It is transmitted by aerosol. - It is caused by Coxiella burnetti. - No rash occur in Q fever In scrub typhus vector is trombiculid mite In rickettsial pox the vector is mite. Caused by Rickettsia akari Brill Zinsser's disease / recrudescent typhus is reactivation of epidemic typhus in the human body
Scrub typhus
Rickettsial pox
Brill-Zinsser disease
Q fever
Systemic Bacteriology (Haemophilus, Yersinia, Spirochaetes, Ricketssia, Chlamydia, Mycoplasma and Miscellaneous Bacteria)