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A health worker takes a swab sample of a man to test for the COVID-19 in Bhopal, the capital city of India's Madhya Pradesh state, May 12, 2021. (Str/Xinhua)
A health worker takes a swab sample of a man to test for the COVID-19 in Bhopal, the capital city of India's Madhya Pradesh state, May 12, 2021. (Str/Xinhua)