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Coronavirus immunity can start to fade away within weeks, according to a new study which puts a 'nail in the coffin' in the idea of herd immunity

Coronavirus immunity can start to fade away within weeks, according to a new study which puts a 'nail in the coffin' in the idea of herd immunityThe study by King's College London, the first COVID-19 study of its kind, is the latest to cast doubt over the concept of so-called herd immunity.




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