Seasonal variations in the presence of antibodies against Coxiella burnetii in dairy cattle in Hokkaido, Japan.
The prevalence and seasonal variations of infection by Coxiella burnetti in cattle were investigated seroepidemiologically on a farm in Hokkaido, Japan, by an immunofluorescent antibody test. A total of 364 serum samples from 28 cows were collected from August 1993 to October 1995 in two barns on the farm. It was found that the number of antibody-positive cows and their antibody titers were significantly elevated in winter and decreased in summer. In addition, antibodies were detectable in seroconverted cows for about five months.
Yanase
T
T
Department of Veterinary Public Health, School of Veterinary medicine, Rakuno Gakuen University, Hakkaido, Japan.
Muramatsu
Y
Y
Ueno
H
H
Morita
C
C
D000818:Animals; D000907:Antibodies, Bacterial / Q000032:analysis; D002417:Cattle; D016997:Coxiella burnetii / Q000276:immunology*; D005260:Female; D019084:Fluorescent Antibody Technique, Indirect; D007564:Japan / Q000453:epidemiology; D015995:Prevalence; D011778:Q Fever / Q000453:epidemiology* / Q000276:immunology / Q000662:veterinary*; D012621:Seasons; D016036:Seroepidemiologic Studies
D000907:Antibodies, Bacterial