A medical worker collects nucleic acid test samples for COVID-19 screening in Heping District, Shenyang, northeast China's Liaoning Province, Jan. 5, 2021. Shenyang started conducting the second round of nucleic acid tests for residents in nine districts covering most urban areas to screen for coronavirus infections following recent reports of locally transmitted confirmed COVID-19 cases. (Xinhua/Pan Yulong)
A medical worker collects nucleic acid test samples from a resident for COVID-19 screening in Sujiatun District, Shenyang, northeast China's Liaoning Province, Jan. 5, 2021. Shenyang started conducting the second round of nucleic acid tests for residents in nine districts covering most urban areas to screen for coronavirus infections following recent reports of locally transmitted confirmed COVID-19 cases. (Xinhua/Yang Qing)
A medical worker collects nucleic acid test samples from a resident for COVID-19 screening in Heping District, Shenyang, northeast China's Liaoning Province, Jan. 5, 2021. Shenyang started conducting the second round of nucleic acid tests for residents in nine districts covering most urban areas to screen for coronavirus infections following recent reports of locally transmitted confirmed COVID-19 cases. (Xinhua/Pan Yulong)
Medical workers pack nucleic acid test samples collected for COVID-19 screening in Heping District, Shenyang, northeast China's Liaoning Province, Jan. 5, 2021. Shenyang started conducting the second round of nucleic acid tests for residents in nine districts covering most urban areas to screen for coronavirus infections following recent reports of locally transmitted confirmed COVID-19 cases. (Xinhua/Pan Yulong)
A medical worker collects nucleic acid test samples from a resident for COVID-19 screening in Heping District, Shenyang, northeast China's Liaoning Province, Jan. 5, 2021. Shenyang started conducting the second round of nucleic acid tests for residents in nine districts covering most urban areas to screen for coronavirus infections following recent reports of locally transmitted confirmed COVID-19 cases. (Xinhua/Pan Yulong)
Residents queue for nucleic acid tests for COVID-19 screening in Sujiatun District, Shenyang, northeast China's Liaoning Province, Jan. 5, 2021. Shenyang started conducting the second round of nucleic acid tests for residents in nine districts covering most urban areas to screen for coronavirus infections following recent reports of locally transmitted confirmed COVID-19 cases. (Xinhua/Yang Qing)
A medical worker collects nucleic acid test samples from a resident for COVID-19 screening in Heping District, Shenyang, northeast China's Liaoning Province, Jan. 5, 2021. Shenyang started conducting the second round of nucleic acid tests for residents in nine districts covering most urban areas to screen for coronavirus infections following recent reports of locally transmitted confirmed COVID-19 cases. (Xinhua/Pan Yulong)
A medical worker collects nucleic acid test samples from a resident for COVID-19 screening in Sujiatun District, Shenyang, northeast China's Liaoning Province, Jan. 5, 2021. Shenyang started conducting the second round of nucleic acid tests for residents in nine districts covering most urban areas to screen for coronavirus infections following recent reports of locally transmitted confirmed COVID-19 cases. (Xinhua/Yang Qing)
A medical worker collects nucleic acid test samples from a resident for COVID-19 screening in Sujiatun District, Shenyang, northeast China's Liaoning Province, Jan. 5, 2021. Shenyang started conducting the second round of nucleic acid tests for residents in nine districts covering most urban areas to screen for coronavirus infections following recent reports of locally transmitted confirmed COVID-19 cases. (Xinhua/Yang Qing)
Medical workers collect nucleic acid test samples from residents for COVID-19 screening in Sujiatun District, Shenyang, northeast China's Liaoning Province, Jan. 5, 2021. Shenyang started conducting the second round of nucleic acid tests for residents in nine districts covering most urban areas to screen for coronavirus infections following recent reports of locally transmitted confirmed COVID-19 cases. (Xinhua/Yang Qing)
A volunteer checks the body temperature of a resident before collecting nucleic acid test samples for COVID-19 screening in Sujiatun District, Shenyang, northeast China's Liaoning Province, Jan. 5, 2021. Shenyang started conducting the second round of nucleic acid tests for residents in nine districts covering most urban areas to screen for coronavirus infections following recent reports of locally transmitted confirmed COVID-19 cases. (Xinhua/Yang Qing)
A medical worker collects nucleic acid test samples from a resident for COVID-19 screening in Sujiatun District, Shenyang, northeast China's Liaoning Province, Jan. 5, 2021. Shenyang started conducting the second round of nucleic acid tests for residents in nine districts covering most urban areas to screen for coronavirus infections following recent reports of locally transmitted confirmed COVID-19 cases. (Xinhua/Cai Xiangxin)
Medical workers prepare to collect nucleic acid test samples from residents for COVID-19 screening in Sujiatun District, Shenyang, northeast China's Liaoning Province, Jan. 5, 2021. Shenyang started conducting the second round of nucleic acid tests for residents in nine districts covering most urban areas to screen for coronavirus infections following recent reports of locally transmitted confirmed COVID-19 cases. (Xinhua/Cai Xiangxin)
A medical worker checks personal information with a resident before collecting nucleic acid test samples for COVID-19 screening in Sujiatun District, Shenyang, northeast China's Liaoning Province, Jan. 5, 2021. Shenyang started conducting the second round of nucleic acid tests for residents in nine districts covering most urban areas to screen for coronavirus infections following recent reports of locally transmitted confirmed COVID-19 cases. (Xinhua/Yang Qing)
