China cautions on asymptomatic cases after 67 became confirmed cases on Monday

China cautioned on asymptomatic cases in the country as it saw 67 asymptomatic cases turn into confirmed COVID-19 cases on Monday, said Mi Feng, spokesman of the National Health Commission (NHC), at a press briefing on Tuesday. 

The number was among a total of 89 new cases detected on the Chinese mainland on Monday, and 66 of 67 cases related to people coming from overseas.

Mi said China will highlight the work of epidemiological investigation and medical management of asymptomatic people and their close contacts.

Asymptomatic patients refer to those who tested positive for the disease but show no clinical symptoms. 

Once they develop relevant symptoms, like fever or their CT scans show features of COVID-19, they become confirmed COVID-19 patients. 

So far, there're still 1,005 asymptomatic patients under medical observation on the Chinese mainland.

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