roubaixtuesday
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BA 2 is still uncertain is it not?
We know it is more infectious. Which is a scary thought in of itself given the step up BA 1 Omicron was. But nowhere near as much more infective as BA 1 was over what it replaced.
As I understand there are small indications you can get both versions though as this is as yet so new numbers are small. But no data that it impacts the efficacy of the vaccine or is naturally more dangerous.
Though in lab tests on unvaccinated animals it has created more serious illness. Not sure if that is v BA 1 or v previous variants,
I guess the new normal will involve awaiting the Zeta variant that is way way more infectious as you can get it if you live in the same postcode as someone who does and hope that stays as treatable as what we have.
Kind of like we will be playing the lottery every week for a few years hoping our numbers never come up.
Though I am sure at some point a broader spread vaccine will be created to try to anticipate what comes next.As at the speed these highly infectious variants go there will be quite possibly no time to react to them and vaccinate widely before the next one is in your face.
Hopefully repeated exposure and multipe vaccinations will edge us towards a kind of herd immunity even if that is literally not possible in the same way as you cannot against the multiple variants creating the common cold - gven how Covid allows such variety and reinfection.
I am sure you will correc me if I have misunderstood anything.
On BA2, I'm not aware of any evidence it's either more or less severe clinically than bog standard omicron, I was just reflecting that as it's got a transmission advantage, you'd expect to see the decline in cases slow or even reverse for a while. That's what the ONS shows.
On the next variant, I've no idea. And I don't think there's any real way to know.
Could be like omicron, a big sudden change, but less severe. Or like delta, more incremental but enough to have a big spike nonetheless. Could be from the mild, omicron end of the family or the severe delta end, or something new.
Built up immunity will for sure help, but how much is unknowable.
But this is what we should be preparing for. Surveillance, prevention and contingencies for the next one. Building resilience into ventilation design, health care capacity etc. Not just hoping it's all over.