Health workers shift a box containing COVID-19 vaccine from a vehicle to a cold storage at Commissionerate of Health and Family Welfare in Hyderabad, India, Tuesday, Jan. 12, 2021. On Jan. 16 India will start the massive undertaking of inoculating an estimated 30 million doctors, nurses and other front line workers, before attention turns to around 270 million people who are either aged over 50 or have co-morbidities. (AP Photo/Mahesh Kumar A.)

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