Neal Browning receives a shot in the first-stage safety study clinical trial of a potential vaccine for COVID-19, the disease caused by the new coronavirus, Monday, March 16, 2020, at the Kaiser Permanente Washington Health Research Institute in Seattle. Browning is the second patient to receive the shot in the study. (AP Photo/Ted S. Warren)
March 16, 2020
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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.