SCMP: Coronavirus can travel twice as far as official ‘safe distance’ and stay in air for 30 minutes, Chinese study finds
* Authorities advise people to stay 1-2 metres apart, but researchers found that a bus passenger infected fellow travellers sitting 4.5 metres away
* The scientists behind the research said their investigation also highlighted the importance of wearing face masks because of the length of time it can linger
The coronavirus that causes Covid-19 can linger in the air for at least 30 minutes and travel up to 4.5 metres – further than the “safe distance” advised by health authorities around the world, according to a study by a team of Chinese government epidemiologists.
The researchers also found that it can last for days on surfaces where respiratory droplets land, raising the risk of transmission if an unsuspecting person touches it and then rubs their face and hands.
The length of time it lasts on the surface depends on factors such as temperature and the type of surface, for example at around 37C (98F), it can survive for two to three days on glass, fabric, metal, plastic or paper.
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