Students wearing masks to help curb the spread of coronavirus wait for their turn to receive a shot of the Sinovac COVID-19 vaccine during a vaccination campaign for children between 12-17 years of age at a school in Tangerang, Indonesia, Wednesday, July 14, 2021. The world's fourth most populous county is struggling to acquire enough vaccines to reach its target of inoculating more than 181 million of its 270 million people by March 2022. (Photo by Tatan Syuflana/AP Photo)
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