A woman receives the COVID-19 vaccine at Rajawadi Hospital in Mumbai, India, Jan. 16, 2021. Indian Prime Minister Narendra Modi launched the nationwide vaccination drive on Saturday to combat the COVID-19 pandemic. (Photos: Xinhua)

Health workers wait in line to receive the COVID-19 vaccine in Mumbai, India, Jan. 16, 2021. Indian Prime Minister Narendra Modi launched the nationwide vaccination drive on Saturday to combat the COVID-19 pandemic.

A nurse prepares the COVID-19 vaccine at Rajawadi Hospital in Mumbai, India, Jan. 16, 2021. Indian Prime Minister Narendra Modi launched the nationwide vaccination drive on Saturday to combat the COVID-19 pandemic.

A woman receives the COVID-19 vaccine at Rajawadi Hospital in Mumbai, India, Jan. 16, 2021. Indian Prime Minister Narendra Modi launched the nationwide vaccination drive on Saturday to combat the COVID-19 pandemic.

Health workers wait in line to receive the COVID-19 vaccine in Mumbai, India, Jan. 16, 2021. Indian Prime Minister Narendra Modi launched the nationwide vaccination drive on Saturday to combat the COVID-19 pandemic.