20 April 2021. According to Dr. Le Hong Nga from Ho Chi Minh City Center for Disease Control (HCDC), in the first three months of 2021, the number of HFMD cases nearly doubled compared to the average of the same period in 2017-2020.https://sggpnews.org.vn/health/medical-workers-fret-about-escalation-of-handfootmouth-cases-91815.html