Alat antigen: update on New Coronavirus pneumonia. From 0:00 to 24:00 on April 19, 31 provinces (autonomous regions and municipalities directly under the central government) and Xinjiang production and Construction Corps reported 2761 new confirmed cases.
Antigen dan swab: WHO premature lifting of epidemic prevention restrictions. After some European countries successively lifted epidemic prevention restrictions, the number of new crown infections in these countries has surged.
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