[Intradermal toxoplasmin tests in Nigeria].

The occurrence of the positivity of an intracutaneous test with Toxoplasmin was followed among a normal urban population of Kaduna (men and women being included). The positivity of males showed a higher frequency in comparison with that of females. The positivity of males however did not increase so fast with the increasing age, as that of females, where the difference between the last two age groups was found to be statistically significant.