module #21 I-Ethics in Epidemiology and Public Health Izimiso zokuziphatha nokucatshangelwa ku-epidemiology kanye nocwaningo lwezempilo yomphakathi kanye nokusebenza
module #22 Communication in Public Health Amasu okuxhumana asebenzayo empilweni yomphakathi, okuhlanganisa ukuxhumana nengcuphe kanye nemiyalezo yezempilo