People wearing masks walk on a street in Kuala Lumpur, Malaysia, March 15, 2020. Malaysia on Sunday announced 190 new confirmed cases of COVID-19 in its largest one-day increase so far, bringing the total number of cases to 428, said the Health Ministry. (Xinhua/Chong Voon Chung)

A shopkeeper plays his phone at a market in Kuala Lumpur, Malaysia, March 15, 2020. Malaysia on Sunday announced 190 new confirmed cases of COVID-19 in its largest one-day increase so far, bringing the total number of cases to 428, said the Health Ministry. (Xinhua/Chong Voon Chung)

A shop assistant cleans a chair in Kuala Lumpur, Malaysia, March 15, 2020. Malaysia on Sunday announced 190 new confirmed cases of COVID-19 in its largest one-day increase so far, bringing the total number of cases to 428, said the Health Ministry. (Xinhua/Chong Voon Chung)