Toxoplasmosis in young Jamaicans.

Of 511 young (1-19 years of age) Jamaicans sampled for IgG antibodies to Toxoplasma by the ELISA method, there was an overall prevalence of 45 per cent. Seropositivity ranged from 24-26 per cent in the 2-year-olds, up to 54 per cent in the 5-9-year-olds. There was no significant difference in prevalence between the sexes, but there was a statistically significant difference between the rates from rural uplands (58 per cent), urban uplands (46 per cent), rural lowlands (40 per cent), and urban lowlands (32 per cent).