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Revista argentina de microbiología

versión On-line ISSN 1851-7617

Resumen

JAR, A. M. et al. Evaluation of the immune response after vaccination against distemper at a mink (Mustela vison) farm in Argentina. Rev. argent. microbiol. [online]. 2010, vol.42, n.3, pp. 189-192. ISSN 1851-7617.

Distemper virus causes a disease affecting minks with respiratory, gastrointestinal, neurological and skin symptoms and showing high morbidity and mortality, mainly among puppies. It is controlled through immunization, using vaccines that are supplied for mink use. The aim of this work was to determine the seroneutralization titer against the distemper virus at a mink farm in Argentina. The antibody kinetics obtained after vaccination in 27 adult animals, as well as the duration of colostrum-transferred antibodies in 10 puppies were determined. All vaccinated adult minks showed protective titers up to at least 3 months after vaccination, and 37.5% significantly reduced their antibody levels, 12 months after vaccination. Only 20% of the puppies showed protective levels of colostrum-transferred antibodies at the age of 7 weeks, while non-detectable levels of antibodies were found when puppies reached 11 weeks old. Vaccination performed in these puppies at the age of 13 weeks, elicited protective seroneutralization titers. These results show that vaccination induces a satisfactory humoral immune response in our environment, and support the convenience of vaccinating dams annually before the beginning of the breeding season. The vaccination plan in puppies is also discussed.

Palabras llave : Mink; Distemper; Neutralizing antibodies; Post-vaccinal immunity.

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