Sunday 17 January 2021

How Covid spreads - it's very rarely from contaminated surfaces

There have been only two known possible cases in the world of outbreaks of infection with Covid-19 via contaminated surfaces. Hand washing is therefore not so important as you think, though useful. Droplets sprayed by someone, usually but not always indoors, are the main way the virus is transmitted. It's not known how far particles travel through the air. Airborne transmission (aerosol) might be possible, in which case they could travel a distance well beyond two metres or it might not. Keeping windows open is strongly advisable where two people meet indoors. Source: Stuart Ritchie, a psychologist and a Lecturer in the Social, Genetic and Developmental Psychiatry Centre at King’s College London, writing in Unherd.

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