BEIJING, Jan. 30 (Xinhua) — The Chinese mainland on Saturday recorded 54 locally transmitted COVID-19 cases, 17 more than the previous day, data from the National Health Commission showed Sunday. Of the new local infections, 20 were reported in Beijing, 19 in Zhejiang, eight in Heilongjiang, four in Tianjin, two in Henan, and one in Yunnan, the commission said in