Numerator: Number of cases of syphilis registered on both banks of Dniester River. In accordance with the national protocol, all pregnant women are tested for syphilis twice. For screening purposes, the non-treponemal test of RPR is used; if it is positive, treponemal tests TPHA Elisa Ig M and IgG are used and confirmed by imunoblot. Denominator: Number of registered pregnant women. 