New study analysing dozens of actual Covid-19 clusters from around the world shows enclosed spaces are hotbeds of the virus
- The overall infection rate was six per cent, but it was much higher among friends (22 per cent) and family members (18 per cent).
- In terms of location, the main risk factors were homes (13 per cent) transport (12 per cent) and dinner and entertainment (seven per cent).
- Risk of infection is much higher within households or other enclosed environments in which contact is close and sustained.
- In the outdoors, it falls to something in the 0-5 per cent range.
- Children, it seems, are not only better able to resist the infection within the home but also less likely to bring it back with them.
- Close and prolonged contact is required for transmission of the virus.
- Risk is highest in enclosed environments such as houses, care facilities, public transport, bars and other indoor spaces where people congregate.
- Casual, short interactions are not the main driver of the epidemic.
- Susceptibility to infection increases with age.