HEPA filters cut covid-19 sick days but we’ve been slow proving this – New Scientist

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TEMPERATURES have recently taken a dip in London, where I live, and, at home, I have been digging out my jumpers. At work, the winter feel is reinforced by a surge of interest in covid-19, with rising reported UK cases leading to familiar concerns over pressures on hospitals.

Because there is now much more population immunity to covid-19, it seems unlikely we would go back to restrictions on public mixing and so on. But in hospitals, where people are more vulnerable, there are questions over whether they should be reintroducing measures like staff wearing masks and having stricter isolation policies.

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HEPA filters cut covid-19 sick days but we've been slow proving this - New Scientist