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A sign for the Kaiser Permanente Washington Health Research Institute is seen outside the building that houses the institute, Sunday, March 15, 2020, in Seattle. The first-stage safety study clinical trial of a potential vaccine for COVID-19, the disease caused by the new coronavirus, which was given to the first volunteer in the study by injection, Monday, March 16 in Seattle will take at the institute. (AP Photo/Ted S. Warren)

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AP Exclusive: Coronavirus vaccine test opens with 1st doses
March 16, 2020 2:03 p.m.

AP Exclusive: Coronavirus vaccine test opens with 1st doses

SEATTLE (AP) — U.S. researchers gave the first shots in a first test of an experimental coronavirus vaccine Monday, leading off a worldwide hunt for protection even as the pandemic surges.