Seroprevalence and risk factors of Toxoplasma gondii infection among pregnant women in Trinidad and Tobago.

Objective: To determine the seroprevalence of toxoplasmosis and the frequency of risk factors for the disease in women attending antenatal clinics in hospitals and local health centers in Trinidad and Tobago.

Methods: From November 2002-September 2003, 232 pregnant women at the antenatal clinics of two large hospitals were sampled during their first trimesters. From October 2003-February 2005, 218 pregnant women at five health care centers were followed through three trimesters, wherever possible, and blood samples collected.