R. Villagra-Blanco1,*, G. Dolz1, D. Montero-Caballero2 and J.J. Romero-Zúñiga1,2
1Programa de Investigación en Medicina Poblacional, Escuela de Medicina Veterinaria, Universidad Nacional (UNA), P.O. Box 86-3000 Heredia, Costa Rica
2Cátedra de Salud de Hato y Control de la Producción, Escuela de Medicina Veterinaria, UNA, P.O. Box 86-3000 Heredia, Costa Rica
A total of 359 sheep samples from 15 flocks were analyzed for the presence of antibodies against Chlamydophila abortus using a commercial Enzyme linked Immunosorbent Assay (ELISA). Antibodies were detected in 19 (5.29%) sheep from 12 (80%) flocks. Seropositive animals were found in all analyzed regions (Central, Chorotega, Atlantic Huetar, North Huetar and Central Pacific) determining prevalence between 0.28% and 4.4%, and intra-flock positivity between 3.7% and 25.0%. The survey revealed two risk factors associated with seropositivity; introducing animals (males and females), embryos, or semen from other farms or from abroad without any sanitary certification, and flocks not having quarantine areas or separated boxes for diseased animals. No clinical signs of disease were observed in positive seroreactors. C. abortus seems to be present in Costa Rica in a very low prevalence in sheep flocks. Further studies, to isolate the bacteria are required. Finally, implementation of control measures to prevent the spread of C. abortus is recommended.
Keywords: Abortion, Ovine, Serology, Tropics, Zoonosis.
Cite this paper:
Villagra-Blanco, R., Dolz, G., Montero-Caballero, D. and Romero-Zúñiga, J.J. 2015. Detection of antibodies against Chlamydophila abortus in Costa Rican sheep flocks. Open Vet. J. 5(2), 122-126.