Antibodies to Rickettsia conorii in dogs: seasonal differences.
Eight dogs, having showed positivity to Rickettsia conorii in serum samples obtained during the spring and summer, were studied again by means of a second determination during the next winter, 4-10 months later. Serum titer became negative in six dogs, persisted high in one, and fell from 1:640 to 1:40 in another dog. This seasonal difference suggests a short persistence of antibodies in dogs after contact with R. conorii in the Mediterranean area.
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Hospital de Terrassa, Barcelona, Spain.
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D000818:Animals; D000907:Antibodies, Bacterial / Q000097:blood*; D001907:Boutonneuse Fever / Q000097:blood / Q000453:epidemiology / Q000662:veterinary*; D004283:Dog Diseases / Q000097:blood / Q000453:epidemiology*; D004285:Dogs; D011159:Population Surveillance; D015995:Prevalence; D012281:Rickettsia / Q000276:immunology*; D012494:Sampling Studies; D012621:Seasons; D016036:Seroepidemiologic Studies; D013030:Spain / Q000453:epidemiology; D014505:Urban Population
D000907:Antibodies, Bacterial