UKHSA Technical Briefing 31, dated 10th December 2021

B.1.1.529, Coronavirus, England, Genome, Infection, London, Northern Ireland, Omicron, PCR, Scotland, Transmission, UK, Vaccine, Vaccine Breakthrough, Wales

“If Omicron continues to grow at the present rate, Omicron is projected to reach parity with Delta in mid-December.”

The latest UKHSA Technical Briefing is out today, it’s Technical Briefing #31. We are linking to it below so that you can download it and read it for yourself. The briefing gives updated advice on the spread of the Omicron variant in Britain.

UKHSA Technical Briefing 31


From Technical Briefing 31 – Omicron is the line on the furthest left in the chart below. Its explosive growth is already eclipsing the growth rates of all previous variants after their introduction into the UK.


UKHSA Technical Briefing 31 shows secondary attack rates for Omicron household exposure are twice as high as the secondary attack rates for Delta:


** Further UK school closures must be a real possibility following this data **

** This post was originally published on December 10, 2021 **