The marathon of covid-19 vaccination
IT HAS BEEN described as a race between infections and injections. If so, infections are still winning. About 5m new cases of covid-19 a week are being recorded around the world. As we went to press, some 51 countries had begun to administer vaccines, according to Our World in Data, a website; over the previous week 17m people had been vaccinated, but the global total of doses was still below 50m. Only five countries had given the first dose to more than 5% of its population.
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