And for more on COVID transmission, check out The Strange New Way You Could Get COVID, Study Says.
The Cambridge team says "ventilation … is of utmost importance in minimizing infection risk indoors." In a statement, de Oliveira said the study shows "how these small droplets can accumulate in indoor spaces in the long-term, and how this can be mitigated with adequate ventilation.".The team also used their findings to build an online calculator that can help users assess the risk of different indoor situations given the size of a room and the number of people in it.If you're spending an hour in an average-sized store with a capacity of 50 people, for example, improving ventilation or wearing three-ply face masks can see your risk of infection decrease from 8 percent to 2 percent.