US COVID-19 Vaccine Rollout Analysis Hampered by Technology, State Data Reporting

(Reuters) – When a dose of a COVID-19 vaccine leaves a U.S. manufacturing plant, its path can be traced all

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CanSinoBIO Says COVID-19 Shot May Be Less Effective Over Time, Booster Shot Promising

BEIJING (Reuters) – China’s CanSino Biologics Inc said the efficacy rate for its single-dose COVID-19 vaccine may fall over time

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