Coronavirus: some India slums ‘may have reached herd immunity’, study finds

About six in 10 people living in some of India’s biggest slums have antibodies for the novel coronavirus, indicating they had recovered from infection, in what appears to be one of the highest population immunity levels known worldwide.The findings, from a July serological survey of 6,936 people across three suburbs in Mumbai, may explain why a steep drop in infections is being seen among the closely-packed population, despite new cases accelerating overall in the hard-hit country.“Mumbai’s…

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