[Serological investigation of toxoplasmosis in patients of the M.I.P. center of Franceville (Gabon)].

The seroprevalence of toxoplasmosis was assessed between 1995 and 1997 on 767 pregnant women on the occasion of their medical check-ups for pregnancy in the preventive health centre of Franceville, province of the Haut-Ogooué, Gabon. Among the women under investigation, 71.2% were found to be IgG seropositive, including 2.6% IgM seropositive. When compared to similar studies conducted for the last 20 years in the same region, these results give evidence of an increase of the seroprevalence to toxoplasmosis among pregnant women, contributing to a decreased risk of contracting the disease during pregnancy.