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1 gru 2021 · There are many reasons for the paucity of robust empirical evidence on transmission of SARS-CoV-2 and the effectiveness of mitigation measures. It is extremely difficult to measure infectious SARS-CoV-2 virus in real world contexts, especially when airborne.
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25 sie 2020 · Rules that stipulate a single specific physical distance (1 or 2 metres) between individuals to reduce transmission of SARS-CoV-2, the virus causing covid-19, are based on an outdated, dichotomous notion of respiratory droplet size.
4 wrz 2020 · Current evidence suggests that the virus spreads mainly between people who are in close contact with each other, for example at a conversational distance. The virus can spread from an infected person’s mouth or nose in small liquid particles when they cough, sneeze, speak, sing or breathe.
28 maj 2021 · This is supported by the systematic review by Chu et al., which found that virus transmission was significantly lower with physical distancing of 1 m or more, compared with a distance of less than 1 m (pooled adjusted odds ratio of 0.18 [95% CI 0·09 to 0·38]) [ 52 ].
29 cze 2022 · This rapid review found evidence suggesting that long distance (>2 m) airborne transmission of SARS-CoV-2 might happen in indoor non-healthcare settings, and that it can occur from people who are asymptomatic or presymptomatic.
22 cze 2020 · VERDICT. The 2-metre social distancing rule assumes that the dominant routes of transmission of SARS-CoV-2 are via respiratory large droplets falling on others or surfaces. A one-size-fits-all 2-metre social distancing rule is not consistent with the underlying science of exhalations and indoor air.
