2. Purpose. . Provide concepts and latest research findings related to prevention of mother-to-child transmission of HIV (PMTCT) for application in the workplace.. 3. Learning Objectives. Describe modes of HIV transmission from mother to child.Understand mother-to-child transmission (MTCT) risk analysis.Understand key MTCT research findings.Explain infant feeding challenges faced by HIV-positive mothers.Describe PMTCT interventions..