From July 2020 –July 2021, 374 patients were enrolled and tested with Rotavirus from two sentinel sites in Dar Es Salaam, 22(5.8%) patients tested positive for rotavirus. Data quality for assessed indicator was (92%), Flexibility was scored 100%, stability scored (80%), simplicity and acceptability were scored (83%, 83%) respectively. The proportion of results meet TAT 50 out of 86(58%) report on time and representativeness was scored 2(40%).  The overall usefulness score of the system was 75%,  
