TY - RPRT TI - Flea-borne rickettsioses: ecologic considerations. AU - A F Azad AU - S Radulovic AU - J A Higgins AU - B H Noden AU - J M Troyer DO - 10.3201/eid0303.970308 UR - https://pubmed.ncbi.nlm.nih.gov/9284376/ ID - 9284376 ER -