Tetanus antibody levels were determined by a passive hæmagglutination technique in serum samples obtained in 1969 from 1,400 individuals living in Busselton, Western Australia. Of these, 839 (59.9%) had no detectable antibody to tetanus toxoid. Antibody was found in a smaller proportion of females (37.6%) than of males (45.5%). Elderly subjects of both sexes were more likely to have no detectable antibody to tetanus. It is not clear to what extent the test measures effective immunity against tetanus. However, the results suggest that a significant proportion of Australians may lack such immunity.
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Chapman et al. (1973) studied this question.
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