Abstract
SUMMARY: Sera from 1,050 apparently healthy individuals were examined for toxoplasma antibodies by means of haemagglutination and complement fixation tests. Haemagglutinating antibodies were detected in 24 p.c. and complement‐fixing antibodies in 11 p.c. of the individuals. An increasing prevalance of infection with increasing age was not demonstrated in this series. The results indicate that toxoplasmosis is a common infection in New South Wales.