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Home > The Guardian's Science Weekly > Covid-19: How do you calculate herd immunity?
Podcast: The Guardian's Science Weekly
Episode:

Covid-19: How do you calculate herd immunity?
Category: Religion & Spirituality
Duration: 00:13:59
Publish Date: 2020-05-22 13:22:12
Description: Herd immunity represents the percentage of people in a population who need to be immune to a disease in order to protect those who aren’t. Early on in the pandemic, researchers estimated the herd immunity threshold for Covid-19 to be 60%. Following a question from a listener, Ian Sample speaks to Rachel Thomas to explore the maths and find out exactly how herd immunity is calculated. Help support our independent journalism at theguardian.com/sciencepod
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