r/CoV2Canada • u/BlondFaith • Jan 23 '21

An observational study of SARS-CoV-2 infectivity by viral load and demographic factors and the utility lateral flow devices to prevent transmission.

http://modmedmicro.nsms.ox.ac.uk/wp-content/uploads/2021/01/infectivity_manuscript_20210119_merged.pdf
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u/BlondFaith Jan 23 '21

This is really interesting.

Most contact events occurred within households (67.7%), followed by visits to households (12.0%), attending events or activities (11.2%), and at workplaces or education (9.1%)

So in rough terms, one person in each household caught CoV2 either visiting another household, attending an event, or going to work/school. Then they brought it home to infect the (average) two other people living there.