Conduct an RCT to evaluate the efficacy of the HITSystem© in improving 8 critical intervention benchmarks for optimal Early Infant Diagnosis of HIV and management. Identify among HIV-exposed infants predictors of (1) incomplete EID care and (2) time periods most vulnerable to loss of contact at both intervention and control sites. Estimate the incremental cost-effectiveness of the HITSystem© in improving complete EID care across study arms.