Republican Rob Portman says he hopes to boost public confidence in the vaccine and encourage other Americans to volunteer for similar trials
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Brazilian regulatory body stops tests of Chinese-developed vaccine after adverse, serious event involving volunteer in late October
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Pause is the second imposed by drugmakers racing to develop coronavirus vaccine; new study suggests COVID-19 patients remain vulnerable to reinfection/
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China in recent months has been injecting hundreds of thousands of people with three preliminary coronavirus vaccines that are being tested for safety and ...
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Vaccine from Johnson & Johnson becomes fourth to undergo large-scale testing under Trump administration's Operation Warp Speed initiative
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Democratic Party's challenger for presidency rolls out his plan hours after US government outlined its strategy for deploying coronavirus vaccine doses
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The Victorian state government has said there will be a staged easing of lockdown measures in the coming months if infection rates decline
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