Seroepidemiological survey of chlamydial infections in light horses in Japan.
To investigate the overall prevalence of chlamydial infections in light (i.e. non-draught) horses in Japan, 599 sera obtained from 12 localities in 1991 were tested for complement fixation antibodies. The mean antibody positive rates of the all sera were 15.2% (91/599) and the regional positive rates were higher in Honshu (19.1%, 48/251) and Kyushu (20.0%, 20/100) than in Hokkaido (9.3%, 23/248). In Honshu, the highest rate (56.0%, 28/50) was observed in Utsunomiya. Analysis of the positive rate in different age groups showed that the 2-5 years age-group had the highest prevalence of chlamydial infections. This indicates that chlamydial infection is prevalent in light horses in Japan.
Department of Veterinary Public Health, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan.
C
C
Miyamoto
I
I
Takashima
H
H
Karaiwa
T
T
Sugiura
M
M
Kamada
N
N
Hashimoto
D000818:Animals; D000907:Antibodies, Bacterial / Q000097:blood; D002690:Chlamydia Infections / Q000097:blood / Q000453:epidemiology / Q000662:veterinary*; D002691:Chlamydophila psittaci / Q000276:immunology*; D003168:Complement Fixation Tests; D003710:Demography; D006734:Horse Diseases / Q000453:epidemiology*; D006736:Horses; D007564:Japan / Q000453:epidemiology; D015995:Prevalence; D009956:Psittacosis / Q000097:blood / Q000453:epidemiology / Q000662:veterinary*
D000907:Antibodies, Bacterial