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Development of new coronavirus vaccines may be hitting critical mass. Here’s how they work

Data on vaccines being tested by Johnson & Johnson and Novavax came out last week, and makers of AstraZeneca‘s vaccine and Russia’s Sputnik V vaccine published some long-awaited details about their shots on Tuesday. All indicate high efficacy against the virus, even though they take very different approaches. Here’s how some of the top coronavirus

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AstraZeneca vaccine appears to substantially reduce transmission of the coronavirus, study shows

The Oxford-AstraZeneca Covid-19 vaccine appears to substantially reduce transmission of the virus, rather than simply preventing symptomatic infections, UK researchers have suggested. The rate of positive PCR tests declined by about half after two doses, according to preliminary results by researchers at the University of Oxford that have yet to be peer reviewed. Their analysis,

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Oxford/AstraZeneca vaccine may cut coronavirus transmission, UK researchers say

The Oxford-AstraZeneca Covid-19 vaccine appears to reduce transmission of the virus, rather than simply preventing symptomatic infections, UK researchers have suggested. The rate of positive PCR tests declined by about half after two doses, according to preliminary results by researchers at the University of Oxford that have yet to be peer reviewed. Their analysis, released

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