This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Medicine
[{'content': 'Brill Zinsser disease is caused by \nSelect and explain. \nA. C. burnetti, B. R. typhi, C. R. slovaca, D. R. prowazekii', 'role': 'user'}, {'content': 'Answer: D \nExplanation: DiseaseEtiologyDescriptionGroup Affected/Epidemiologic FactorsClinical SyndromeEpidemic typhusRickettsia prowazekiiMaculopapular eruption appearing inaxillae, spreading to trunk and later toextremities; usually spares face, palms, soles;evolves from blanchable macules to confluent eruption with petechiae; rash evanescentin recrudescent typhus (Brill-Zinsserdisease)Exposure to body lice;occurrence of recrudescenttyphus as relapseafter 30-50 yearsHeadache, myalgias;moality rates 10-40% ifuntreated; milder clinicalpresentation in recrudescentformRef: Harrison; 19th edition; Page no: 128', 'role': 'assistant'}]