How much coronavirus does it take to make us ill?

Scientists are mapping out the potential effects of higher viral loads in Covid

Infection coronavirus
Scientists are mapping out the potential effects of higher viral loads in Covid
(Image credit: Getty Images)

Growing evidence suggests that the amount of coronavirus with which people are infected determines how ill they become with Covid-19, according to scientists.

Analysis of multiple research projects also suggests that the “amount of virus you are initially exposed to makes a difference to the chances of catching the bug”, The Telegraph’s global health security editor Paul Nuki reports.

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