The virus that shut down the world: the path to a vaccine




Vaccines that protect against COVID-19 have been developed in record time over the year but, amid fears that people from poorer countries may miss out, the UN has consistently insisted on global solidarity, to ensure that all are protected. In the final part of our series on the ways that the virus has changed the world, we trace the evolution of the COVID-19 vaccines, and how protected we are likely to be in 2021.



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