Technical lead for the WHO's Health Emergencies Program Maria van Kerkhove (R) speaks during a daily briefing in Geneva, Switzerland, on March 5, 2020. China's experience has shown fundamental measures do work to contain COVID-19, such as measures of identifying cases and contacts, as well as mobilizing population, an epidemiologist of the World Health Organization (WHO) noted here Thursday, calling on countries to make full use of them. (Xinhua/Chen Junxia)
