Nursing staff involved with vaccination against the Covid-19 coronavirus pose for a photograph as Goddess Durga at the Ramaiah Hospital in Bangalore on October 21, 2021, as they celebrate India administering its billionth Covid-19 vaccine dose on October 21, according to the health ministry, half a year after a devastating surge in cases brought the health system close to collapse. (Photo by Manjunath Kiran/AFP Photo)
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