[Value of prevention of congenital toxoplasmosis].

PURPOSE

To verify incidence of toxoplasmosis seroconversion during pregnancy and the interest of treating the mother.

METHODS

Among 7044 infants born between January 1989 and December 1993, 78 (1.1%) born to mothers who developped toxoplasmosis seroconversion during pregnancy were followed.

RESULTS

Among 69 mothers treated, there were only 9 cases of congenital toxoplasmosis (13.4%) including only 3 cases of patent toxoplasmosis.

CONCLUSION

Treating the mother is an effective means of preventing toxoplasmosis. The cost of verifying seronegativity in women during pregnancy could be reduced by primary prevention.