The Swiss cheese model of Covid-19 defence: What it means, how it works
It’s not edible, but it can save lives in fight against coronavirus, explains virologist Ian Mackay
What if ‘herd immunity’ to coronavirus is closer than scientists thought?
Some modellers predict that Covid-19 will fade more quickly than previously assumed
239 experts with one big claim: Coronavirus is airborne
The WHO is resisting evidence that particles floating indoors are infectious, scientists say
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