It is true regarding Endemic typhus that -: (A) Man is the only reservoir of infection, (B) Flea is a vector of the disease, (C) The rash developing into eschar is a characteristic presentation, (D) Culture of the etiological agent in tissue culture is a diagnostic modality
Answer is B. Rats are the reservoirs. Rat flea is the vector. Rickettsial infection is characterised by fever , headache ,malaise, prostration,skin rash and enlargement of spleen and liver. Diagnostic procedures include isolation of rickettsiae, IFA, CFT, Weil Felix test , ELISA Reference; Park&;s Textbook of preventive and social medicine, 24th edition.Pg no. 317