A health worker administers a dose of the Sputnik V vaccine against COVID-19 to an eldery woman at the Victorino Santaella Hospital in Los Teques, Venezuela on April 9, 2021, amid the ongoing coronavirus pandemic. - Like the rest of South America, Venezuela is battling a harsh new pandemic wave fueled, authorities say, by more infectious virus variants from Brazil. (Photo by Pedro Rances Mattey / AFP)