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4, Sir Richard Feachem, who served as under-secretary-general of the United Nations and founding executive director of the Global Fund to Fight AIDS, Tuberculosis, and Malaria, warns that counting on a COVID-19 vaccine to come to our rescue soon is not only unlikely but is a dangerous assumption on which to plan the overall response to the pandemic. Politicians and vaccine developers have incentives to reinforce this assumption, he notes, in spite of the long odds against a vaccine with high efficacy, a protracted duration of protection, a convenient dosing schedule, and the ability to administer billions of doses

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