CoMix study - Social contact survey in the UK
Status: Report | First online: 05-10-2020 | Last update: 07-09-2021
Authors: Christopher I Jarvis*, Amy Gimma, Kevin van Zandvoort, Kerry LM Wong, James D Munday, Petra Klepac, Sebastian Funk, W John Edmunds* & CMMID COVID-19 working group.* corresponding author
This study has not yet been peer reviewed.
We present updated reports from the CoMix social contacts survey. Participants reported the total number of direct contacts that they had on the day before the survey, which are people with whom they had at least a brief face-to-face conversation, or with whom they had any sort of skin-to-skin contact. Week 1 links to a peer-reviewed publication of the CoMix study which provides further details of the study questions and the study protocol.
Analyses are presented every two weeks. We aimed to track the reproduction number and mean contacts over time and explore differences in regions.
Note there was a data issue in reports 62-64 therefore the results are not accurate. We keep them here for historical purposes.
Latest Reports
Comix week 77
Comix week 76
Comix week 75
Special Reports
Comix contact matrices report
Comix contact matrices available here
Comix - contacts in the workplace
Comix - individuals with high numbers of contacts
Comix - Reconstructing the secondary case distribution of SARS-CoV-2 from heterogeneity in viral load trajectories and social contacts
Recent Reports
Comix week 74
Comix week 73
Comix week 72
Comix week 71
Comix week 70
Comix week 69
Comix week 67
Comix week 65
Older Reports
Note there was a data issue in reports 62-64 therefore the results are not accurate. We keep them here for historical purposes.
Comix week 64
Comix week 63
Comix week 62
Comix week 61
Comix week 60
Comix week 59
Comix week 57
Comix week 56
Comix week 55
Comix week 54
Comix week 53
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Comix week 43b- Schools
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Comix week 24
Comix week 20-23
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Comix week 1