Interesting podcast with Trevor Bedford, PHD https://bedford.io/team/trevor-bedford/
![]()
Preparing for the Omicron Wave (with Trevor Bedford)
Podcast Episode · In the Bubble with Andy Slavitt · 13 December 2021 · 56minpodcasts.apple.com
Essentially his theory on why Omicron is so transmissible is, that the R0 for the original wild Covid strain was 3, Delta is 6, and they think Omicron is 4-6.
But the difference between Delta and Omicron is that Delta was running out of people to infect so Rt was around 1 (effective transmission rate).
Since Omicron can infect maybe up to approx 3x the number of people due to the suggested immune escape it’s Rt is much higher while the R0 is about the same, or even lower.
So in a totally naive population, they would act pretty much the same but in today’s circumstances, Omicron is way more transmissible.
So the theory proposed is it’s not R0 = 24. It’s just that it’s got a bigger choice of people.
He also suggests that Delta and Omicron are different enough so they could co-exist. Great…
This fellow is very smart and what he says makes lots of sense (given he studies viral sequence evolution for a living, so to speak).
