A nurse prepares a malaria vaccine at a hospital in Yala, Kenya, 7 October 7 2021. There were more than 240m cases globally of the disease last year. Photograph: James Keyi/Reuters
A nurse prepares a malaria vaccine at a hospital in Yala, Kenya, 7 October 7 2021. There were more than 240m cases globally of the disease last year. Photograph: James Keyi/Reuters
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