Anticorpos contra Leptospira spp. em animais domésticos e silvestres presentes no campus universitário da FCAV, UNESP, Jaboticabal/SP / Antibodies against Leptospira spp. in domestic and wild animals at the university campus of FCAV, UNESP, Jaboticabal/SP

RESUMO

O presente estudo objetivou detectar anticorpos contra Leptospira spp. em animais domésticos e silvestres presentes no Campus Universitário da Faculdade de Ciências Agrárias e Veterinárias (FCAV), Unesp, Jaboticabal. Em outubro de 2007, foram colhidas amostras de sangue de 279 animais, entre equinos, suínos, caprinos, ovinos, bovinos e cães. Desses animais, 87 (31,1%) foram reagentes à Leptospira spp., pela prova de soroaglutinação microscópica (SAM). Em março de 2008, foram colhidas amostras de sangue de 236 animais, entre equinos, suínos, caprinos, ovinos, bovinos, cães, coelho, gambás e cervídeos. Desses animais, 75 (31,7%) foram reagentes à Leptospira spp., pela SAM. Em julho de 2008, foram colhidas amostras de sangue de 167 animais, entre equinos, suínos, caprinos, ovinos, bovinos e gambás. Desses animais, 75 (44,9%) foram reagentes à Leptospira spp., pela SAM. Houve influência sazonal na ocorrência de anticorpos, e as diferenças entre as prevalências de anticorpos durante o inverno e a primavera e durante o inverno e o verão foram significativas pelo teste X'; a maior frequência de anticorpos contra Leptospira spp. foi observada durante o inverno. Dos 25 gambás analisados, 11 (44,0%) foram reagentes pela SAM, sendo 5 (20,0%) ao sorovar Patoc, 3 (12,0%) ao Autumnalis e 3 (12,0%) ao Icterohaemorrhagiae. Entre as diferentes regiões de captura e colheita de amostras de sangue de gambás (Didelphis albiventris), não houve diferença significativa quanto à ocorrência de anticorpos contra Leptospira spp., pelo teste exato de Fisher. No mês de julho de 2008 observou-se maior ocorrência de anticorpos nos gambás. Os sorovares encontrados neste Campus, durante todo o período de estudo, foram Andamana, Autumnalis, Canicola, Icterohaemorrhagiae, Patoc, Pomona e Pyrogenes.

ABSTRACT

This study aimed to detect antibodies against Leptospira spp. in domestic and wild animals present in the Campus of FCAV, Unesp, Jaboticabal. In October 2007, blood samples were taken from 279 animals, including horses, pigs, goats, sheep, cattle and dogs. Of these animals, 87 (31.1%) were positive to Leptospira spp., by the microscopic agglutination test. In March 2008, blood samples were taken from 236 animals, including horses, pigs, goats, sheep, cattle, dogs, rabbits, opossums and deer. Of these animals, 75 (31.7%) were positive for Leptospira spp.. In July 2008, blood samples were taken from 167 animals, including horses, pigs, goats, sheep, cattle and skunks. Of these animals, 75 (44.9%) were positive to Leptospira spp.. Seasonal influence on the occurrence of antibodies was detected, and the differences between the prevalence of antibodies during the winter and spring and during the winter and summer were significant by X 2 test - Chi-square, and the higher frequency of antibodies against Leptospira spp. was observed during the winter. Of the 25 opossums examined, 11 (44.0%) were positive by SAM, 5 (20.0%) to serovar Patoc, 3 (12.0%) to autumnalis and 3 (12.0%) to Icterohaemorrhagiae. Among the several regions of capture and collection of blood samples from opossums (Didelphis albiventris), no significant difference in the occurrence of antibodies against Leptospira spp was detected by Fisher's exact test. Serovars found in this Campus throughout the study period were Andaman, Autumnalis, Canicola, Icterohaemorrhagiae, Patoc, Pomona and Pyrogenes.