"This research summary focuses on VCT in the antenatal care (ANC) setting, examining specifically service utilization by pregnant women, their perceptions of services, client outcomes as a result of undergoing HIV counseling and testing, and strategies for improving quality and coverage of VCT as a key component of PMTCT programs. The data come from a four-year intervention study conducted by Horizons, the Network of AIDS Researchers in East and Southern Africa (NARESA) in Kenya, the MTCT Working Group in Zambia, and UNICEF."