The Pareto principle—80/20 rule—law of the vital few, is quickly getting backing for #SARSCoV2 transmissibility.
3 preprints, using 3 different methods, different patient cohorts, show a small % of infections account for a large proportion of spread.
A table to summarize

Links to these preprints:
International, modeling
https://wellcomeopenresearch.org/articles/5-67 
@_akiraendo @adamjkucharski and colleagues
Israel, sequencing
@Daniellemlrs @SternLab
Cluster tracing, Hong Kong
@DillonCAdam @gmleunghku @bencowling88

This @ScienceMagazine summary by @kakape is outstanding for explaining what we know about "overdispersion" (aka super spreader) events tied to settings, individuals, and timing https://www.sciencemag.org/news/2020/05/why-do-some-covid-19-patients-infect-many-others-whereas-most-don-t-spread-virus-all
And this ★ thread @SternLab https://twitter.com/SternLab/status/1264084563896254465

Knowing the dominant role of overdispersion helps in many ways, such as prevention of high risk settings
Best paper by @gmknght and colleagues https://wellcomeopenresearch.org/articles/5-83/v1

And prioritize contact tracing, as pointed out by @nataliexdean https://twitter.com/nataliexdean/status/1264394137723260929