FILE - A doctor fills a syringe with the Johnson & Johnson COVID-19 vaccine donated through the U.N.-backed COVAX program at a vaccination center in Kabul, Afghanistan, Sunday, July 11, 2021. COVAX, created to share coronavirus vaccines fairly, already scaled back its pledge to the world's poor once. Now, to meet even that limited promise, it would have to deliver more than a million doses every hour until the end of the year. (AP Photo/Rahmat Gul, File)
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