A health worker collects nasal swab from a woman for COVID-19 test in Hyderabad, India, on May 9, 2021. (Photos: Xinhua)
A health worker collects nasal swab from a woman for COVID-19 test in Hyderabad, India, on May 9, 2021. (Str/Xinhua)
A health worker collects nasal swab from a woman for COVID-19 test in Hyderabad, India, on May 9, 2021. (Str/Xinhua)
A health worker collects nasal swab from a woman for COVID-19 test in Hyderabad, India, on May 9, 2021. (Str/Xinhua)
