Read this.
Japan tackled the epidemic without massive testing or extreme social distancing— they instead focused on high-risk scenarios (see next tweet).
More to support the notion of super-spreading scenarios driving spread.
#covid19
sciencemag.org/news/2020/05/j…
“Not surprisingly, they found that most clusters originated in gyms, pubs, live music venues, karaoke rooms, and similar establishments where people gather, eat and drink, chat, sing, and work out or dance, rubbing shoulders for relatively extended periods of time
“This led them to urge people to avoid what they dubbed the “three Cs”—closed spaces, crowds, and close-contact settings in which people are talking face-to-face.”
They describe that people travel alone, don’t speak much on the train, & wear masks as well.

