As of Monday, Heilongjiang still had four asymptomatic cases. A total of 19,838 close contacts of COVID-19 patients in the province had been tracked, and 627 people were still undergoing medical observation.
Heilongjiang had been cleared of confirmed COVID-19 cases as the last patient was discharged from hospital after recovery on May 16.
By Monday, the province had reported a total of 559 locally transmitted confirmed COVID-19 cases and 386 imported confirmed cases.
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