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News • Supply and demand
Covid-19 vaccine will probably be unavailable for many until 2022
Nearly a quarter of the world’s population may not have access to a covid-19 vaccine until at least 2022, warns a study published by The BMJ. A second study estimates that 3.7 billion adults worldwide are willing to have a covid-19 vaccine, highlighting the importance of designing fair and equitable strategies to ensure that supply can meet demand, especially in low and middle income countries.