Serological Tests for Toxoplasmosis

INTEREST in various serological tests for toxoplasmosis has increased considerably in recent years. Sum and Lind1, in a preliminary communication, have recently described a flocculation test using toxoplasma antigen adsorbed on to acrylic particles. They stated that preliminary results of absorption experiments showed the existence of more than one toxoplasma antigen. The following experiments carried out in this Laboratory may be of interest.