Serological response of cattle to Chlamydophila abortus in Slovakia in 1996-2000.
In the Slovak Republic, in 1966-2000, 37,275 blood sera of cattle were investigated for the presence of antibodies against Chlamydophila abortus using the method of complement fixation. The antibody occurrence had following tendency: in 1996--3.72%; 1997--10.02%; 1998--9.15%; 1999--15.99%; 2000--9.51% of the tested sera contained the antibodies. In most cases, antibodies in low titres, 1:32-1:64, were detected. Positive serological reactions at such serum dilutions are not indicative of the clinical disease of cattle; they reflect an immune response of the host organism following contact with the Chlamydophila abortus antigen. The chlamydial antibody titres of 1:256, which were confirmed in 1998-1999, indicate the chlamydial infections.
Trávnicek
M
M
University of Veterinary Medicine, Komenského 73, 04181 Kosice, Slovakia.
Kovácová
D
D
Deptuła
W
W
Bajová
V
V
Cisláková
L
L
Zubrický
P
P
Stosik
M
M
D000818:Animals; D000907:Antibodies, Bacterial / Q000097:blood*; D002417:Cattle; D002418:Cattle Diseases / Q000097:blood / Q000453:epidemiology* / Q000635:transmission; D023501:Chlamydophila / Q000276:immunology* / Q000302:isolation & purification; D023521:Chlamydophila Infections / Q000453:epidemiology / Q000662:veterinary*; D003168:Complement Fixation Tests / Q000662:veterinary; D018445:Infectious Disease Transmission, Vertical / Q000662:veterinary; D016036:Seroepidemiologic Studies; D018154:Slovakia / Q000453:epidemiology
D000907:Antibodies, Bacterial