The theory is that banning mass public events where hundreds of attendees can infect themselves in the space of a few hours, along with other measures such as wearing face masks, might slow the pace of the new coronavirus’s progression to a manageable level even as shops and factories reopen.

https://www.msn.com/en-us/health/medical/superspreader-events-offer-a-clue-on-curbing-coronavirus/ar-BB14mzoD?ocid=spartandhp

identifying patterns.  probabilities  likelihood