A health worker collects a swab sample from a resident for COVID-19 tests at Dharavi slum in Mumbai, India on Feb. 23, 2021. (Photo by Fariha Farooqui/Xinhua)
Health workers collect swab samples from residents for COVID-19 tests at Dharavi slum in Mumbai
Source: Xinhua| 2021-02-23 20:29:19|Editor: huaxia
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