Serologic survey for leptospirosis in Arizona beef cattle in 1981.
Am J Vet Res
; 44(9): 1763-4, 1983 Sep.
Article
en En
| MEDLINE
| ID: mdl-6625331
ABSTRACT
Sera from 1,215 beef cattle in Arizona were evaluated by leptospiral microscopic agglutination test in 1981. Over 25% had agglutinins to greater than or equal to 1 of 5 serovars of Leptospira interrogans used as antigens (canicola, grippotyphosa, hardjo, icterohaemorrhagiae, and pomona) at a titer of greater than or equal to 1100, and 8.2% had titers of greater than or equal to 1400 to greater than or equal to 1 serovars. The most common serovar to which reactions were detected was hardjo; agglutinins were detected at titers of greater than or equal to 1100 in 14.3% and of greater than or equal to 1400 in 5.5%. Cross reactions were rare at serum dilutions greater than or equal to 1100 (2%) and extremely rare at greater than or equal to 1400 (0.7%). Because vaccination with leptospiral bacterins is seldom practiced in Arizona beef cattle, a titer of greater than or equal to 1100 may be useful in estimating incidence and prevalence of the disease and as an aid to diagnosis of leptospirosis.
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Banco de datos:
MEDLINE
Asunto principal:
Enfermedades de los Bovinos
/
Leptospirosis
Tipo de estudio:
Risk_factors_studies
Límite:
Animals
País/Región como asunto:
America do norte
Idioma:
En
Revista:
Am J Vet Res
Año:
1983
Tipo del documento:
Article