VOA慢速英语:越南如何控制新冠病毒

sanitizer - n. substance used to thoroughly clean something from disease, infection, etc.

scan - v. to look a something using a special machine or device

quarantine - n. the situation of being kept away from others to prevent a disease from spreading

implement - v. to make something active or effective

contact-tracing - n. the action of monitoring infected people and notifying those who come in contact with them

epidemic - n. an occurrence in which a disease spreads very quickly and affects a large number of people

positive - adj. in medical, showing the presence of a particular germ, condition