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Chinese mainland reported zero indigenous new suspected cases of COVID-19 on Tuesday, said China's National Health Commission (NHC) on Wednesday at a press briefing.

The NHC received reports of 21 newly suspected cases of novel coronavirus infection on the Chinese mainland Tuesday, and all of them are imported cases.

There have been no new indigenous confirmed cases in Hubei, except Wuhan, for 13 consecutive days.

The medical assistance teams are leaving Hubei in batches.

According to the World Health Organization (WHO), the pandemic has affected 159 countries and regions, it is significant to prevent the imported cases.

The international community should take active measures and work together to fight the COVID-19. 

(Compile by He Jieqiong)