ASSIS, A. C. O.; http://lattes.cnpq.br/1867084005410747; ASSIS, Adriana Cunha de Oliveira.
Résumé:
A serologic survey was conducted among 131 swine slaughtered in the public
slaughterhouse of Patos city, Northeast region of Brazil, to determine the prevalence of
anti-Leptospira spp. agglutinins. For serologic diagnosis of leptospirosis, the
microscopic serumagglutination test (MAT) was carried out using live cultures of 22
pathogenic and two saprophytic Leptospira spp. serovars. The most frequent serovar
was found crossing the results of frequency and titer of agglutinins, and sera presenting
equal titers for two or more serovars were not considered for this analysis. Of the 131
swine analyzed, 44 were seropositive for at least one Leptospira spp. serovar, resulting
in a seroprevalence of 33.6% (95% CI = 25.5% - 42.4%). The most frequent serovar
was Pomona, with 38 (29.0%; 95% CI = 21.4% - 37.6%) reactant sera. Other reactant
serovars and respective prevalence were: Pyrogenes (2.3%; 95% CI = 0.5% - 6.5%),
Canicola (1.5%; 95% CI = 0.2% - 5.4%) and Shermani (0.8%; 95% CI = 0.02% - 4.2%).
There was statistical difference in seroprevalence to serovar Pomona compared with
others reactant serovars (P < 0.0001).