The administration has faced growing calls to send its stockpile of the AstraZeneca vaccine, which is not yet cleared for use in the U.S., to help countries hit hard by the virus.
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Becky Sullivan has been a producer for NPR since 2011. She is one of the network's go-to breaking news producers and has been on the ground for many major news stories of the past several years. She traveled to Tehran for the funeral of Iranian military leader Qassem Soleimani, to Colombia to cover the Zika virus, to Afghanistan for the anniversary of Sept. 11 and to Pyongyang to report on the regime of Kim Jong-Un. She's also reported from around the U.S., including Hurricane Michael in Florida and the mass shooting in San Bernardino.