I believe you mean this article: https://www.sciencemag.org/news/2020/05/why-do-some-covid-19-patients-infect-many-others-whereas-most-don-t-spread-virus-all ht

I believe you mean this article: https://www.sciencemag.org/news/2020/05/why-do-some-covid-19-patients-infect-many-others-whereas-most-don-t-spread-virus-all https://www.sciencemag.org/news/2020/05/why-do-some-covid-19...