On September 29, 2020, members of the mainland nucleic acid testing support team to Hong Kong - Guo Penghao, Yu Xuegao and Situ Miaoqiong - returned to The First Affiliated Hospital, Sun Yat-sen University after more than 40 days’ work in Hong Kong and two weeks of quarantine. Their work was highly recognized by the HKSAR Government and citizens there.

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