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A Sri Lankan school student receives a COVID-19 vaccine in Colombo, Sri Lanka, Friday, October 15, 2021. Sri Lanka is vaccinating 18- and 19-year-olds against the coronavirus as it expands the shots to students. After beginning with older people, Sri Lanka has now vaccinated 57% of its 22 million population. (Photo by Eranga Jayawardena/AP Photo)
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