DIRECT AGGLUTINATION-TEST FOR SEROLOGIC DIAGNOSIS OF NEOSPORA-CANINUMINFECTION

A direct agglutination test was evaluated for the detection and quanti tation of IgG antibodies to Neospora caninum in both experimental and natural infections in various animal species. As compared with results obtained by the indirect fluorescent antibody test, the direct agglut ination test appeared reliable for the serologic diagnosis of neosporo sis in a variety of animal species. The direct agglutination test shou ld provide easily available and inexpensive tools for serologic testin g for antibodies to N. caninum in many host species.