A serological survey detected antibodies against Babesia ovis in moufl
on sheep (Ovis musimon) from two different reserves located in Catalon
ia in northeastern Spain. An indirect fluorescent antibody test (IFAT)
was developed using a B. ovis isolate of ovine origin as the antigen.
Of 50 sera tested, six (12%) showed titres between 1:160 and 1:640 an
d were considered positive. These results indicate that exposure of mo
uflon to Babesia ovis is common in this region.