Summary:
According to the findings physical distancing is universally effective at reducing the spread of the disease while social bubbles and masks are more situation-dependent. They introduced the concept of 'event R' which is the expected number of people who become infected with Covid-19 from one individual at an event. Events were categorised as saturating (high transmission probability) or linear (low transmission probability). Examples of high transmission settings include bars nightclubs and overcrowded workplaces while low transmission settings include public transit with masks distancing in restaurants and outdoor activities. In settings where there is mixing and the probability of transmission is high such as crowded indoor workplaces bars and nightclubs and high schools having strict social bubbles can help reduce the spread of COVID-19..