title: Contribution to the problem of the occurrence of natural foci of Q fever.
mesh_terms: D000818:Animals; D000906:Antibodies / Q000032:analysis; D001717:Birds; D002417:Cattle; D003168:Complement Fixation Tests; D003381:Coxiella / Q000302:isolation & purification; D003604:Czechoslovakia; D003670:Deer; D004197:Disease Reservoirs / Q000453:epidemiology*; D005455:Fluorescent Antibody Technique; D006041:Goats; D006386:Hemagglutination Tests; D009206:Myocardium / Q000276:immunology; D011778:Q Fever / Q000453:epidemiology*; D012377:Rodentia; D013307:Streptomycin / Q000494:pharmacology; D013987:Ticks; D014774:Virulence
chemical_list: D000906:Antibodies; D013307:Streptomycin