Seroprevalence of Neospora caninum in dairy cattle in Bahia, Brazil

Sera collected from 447 dairy cattle on 14 dairy farms were tested for Neos pora caninum antibodies by use of an immunofluorescent antibody technique. Positive reactions with titres greater than or equal to 1:200 were found in 63 (14.09%) of animals. Neospora positive sera were also tested for Toxopl asma gondii antibodies by using a commercial latex agglutination test. Anti bodies to T. gondii were detected in 3 (4.76%) of 63 N. caninum positive se ra. These results indicate that N. caninum infection is widespread among da iry cattle in Bahia state. (C) 1999 Elsevier Science B.V. All rights reserv ed.