Changchun, capital of Northeast China's Jilin province, reported seven local asymptomatic carriers of COVID-19, according to the province's health commission on Jan 12.

Four cases reported on Jan 11 are two couples who came to the city from Wangkui county in neighboring Heilongjiang province. Three new cases reported on Jan 12 are relatives of the four carriers.

All seven tested positive for the virus on Jan 10 and Jan 11 and were then confirmed as asymptomatic cases by Changchun medical institutions.

At present, all infected individuals have been transferred to designated medical institutions for isolated medical observation.

In addition, centralized isolated medical observation measures have been taken for all close contacts and sub-close contacts which have been tracked.

At the same time, home medical observation measures were undertaken for general contacts, while thorough disinfection was carried out at the residences and workplaces of the seven cases and strict control measures were implemented according to set requirements.

People are all reminded that if they return from Wangkui county in Heilongjiang province and middle and high-risk areas in China -- or have had contact with the above asymptomatic cases -- please take the initiative and report to the local community or village and cooperate with control measures and nucleic acid testing.

In case of fever, cough and other acute respiratory symptoms, please wear medical masks and go promptly to the fever clinics of local designated medical institutions.