Source of disease and close contact of COVID-19 confirmed case

Mahidol University2020-04-012020-04-012020-04-012020https://repository.li.mahidol.ac.th/handle/20.500.14594/53975engMahidol UniversitySource investigationClose contact investigationSource of diseaseClose contactConfirmed caseCOVID-19Source of disease and close contact of COVID-19 confirmed caseImage