15 Matching Annotations
  1. Jun 2021
    1. Christophe Fraser 💙 on Twitter: “Reading Cummings accounts of early creation of Test & Trace, a question I have is when and how it was morphed from aiming to find ~30 contacts per index case, needed to contain spread, into a service that contacts 2-4 contacts per index case, mostly within household.” / Twitter. (n.d.). Retrieved June 28, 2021, from https://twitter.com/ChristoPhraser/status/1408454903249477632

  2. Oct 2020
  3. Sep 2020
  4. Jul 2020
  5. May 2020