Since Covid first manifested its ghastly presence on these shores, I think it fair to say that most of us have gained an understanding of the R number.
In simple terms:
R < 1.0 = Good! ✔️ 👍🏻
R > 1.0 = Bad! ✖️ 👎🏻
Obviously, it has ebbed and flowed in response to: lockdowns beginning; lockdowns ending; vaccine rollout; and social bubbles etc.
However, by this point, few can be in any doubt that R being significantly above 1.0, say around 1.5, is VERY bad indeed. 🤮 #ExponentialGrowth
We have been incredibly lucky to have several highly effective vaccines appear, so quickly.
Just imagine what 2021 would have looked like in the face of the #Delta strain, without ANY vaccines? 😱
But our “leaders”, basically opted for a “vaccine only” strategy. 🙄
In the immortal words of Dick Dastardly: “Drat! Double Drat! & Triple Drat!”
Here’s the thing.
#Omicron has exhibited an R number of around 4!!!! #DaFuq
How the ffffork, did we collectively shift from “getting” that:
R = 1.5 = Very Bad Indeed! 😱
to
R = 4 = Meh! It will be “mild”. 🥳
I mean, sure...the #Omicron numbers (or at least the ones we could detect) were low initially.
They would be, inevitably, at that stage. 🤷🏻♂️
However, the Covid Classic numbers in March 2020 were low too.
Remind me, how did that turn out? 🤔
Oh, and remember that Covid Classic flourished in the face of a complete lockdown.
Now we have a strain with an R number of 4, while major gigs are happening, nightclubs are open, and people are going, “Yayyy, Christmas!”🎄
How’s that likely to play out? 🤔
Granted, we do have a significant proportion of the population who have been vaccinated and/or previously infected.
However, we now have data (via @UKHSA) which shows that “fully vaccinated” ain’t what it used to be, in terms of preventing symptomatic infection from Omicron.
Two doses of AZ (5-6 months after 2nd dose) show 0% efficacy against Omicron.
Two doses of Pfizer (5-6 months after 2nd dose) show 35% efficacy against Omicron.
Booster shots kick those numbers up to 71% and 75% respectively.
Against Delta those numbers are 95% and 96%.
We don’t yet know the vaccine efficacy in terms of protecting against serious illness from Omicron.
It’s too soon for that data.
However, we can reasonably predict that vaccines will offer greater protection against serious illness from Omicron.
That’s the nature of vaccines.
Let’s remember that a significant chunk of the “fully vaccinated” (but unboosted) UK population have had two doses of AZ.
0% efficacy against symptomatic infection? Eek!😱
Repeatedly, the media (and politicians) are (mindlessly, it seems 🙄) repeating the mantra that:
“Omicron cases are doubling every 2-3 days.”
That’s simply not correct.
It will fluctuate from day to day, but it is currently LESS than 2 days.
Do the maths.
It’s easy. 🤓
The 3 days value seems to have arisen as the result of an honest error in calculation. It was corrected but has become an enduring part of the Omicron narrative. 🤷🏻♂️
As a nation, we’re effectively at a Christmas party where a lit match was casually dropped into a waste basket filled with newspaper.
We saw there was smoke.
We can now see flames. 🔥
Our “strategy” appears to be, let the house burn down and THEN call the fire brigade. 🤷🏻♂️🤦🏻♂️🙄
Shit is going to get real and it will do so VERY soon. 😬
While the mildness/severity of Onicron very much matters, it also (to some extent) doesn’t, in that the sheer volume of cases it is generating, WILL overwhelm hospitals.
It may well happen in London first, because London is the least vaccinated part of the UK, as well as the most densely populated. (Chart from @TravellingTabby)
What options do we have then?
Here’s the thing.
Even if we slam on the brakes for a full emergency stop at THAT point, it won’t help...for weeks.
At some point, Omicron’s exponential growth will slow and then start to fall.
Like a dodgy pyramid scheme running out of suckers, as more and more people have already been infected by Omicron, it will start running out of available victims.
We’re not going to be able to detect THAT peak.
Instead, we’ll detect an apparent (false) peak.
Why?
Testing capacity. 😬
Such a gloomy thread, huh?
It gets worse. Those with a nervous disposition should leave now.
You might be thinking, “Well, at least Omicron will burn through the susceptible population fairly quickly and then we’ll be free?” 🤔
Well, yes...but...
Omicron already exhibits significant mutations which allow it to partially evade vaccines.
Each person infected by it becomes a (potential) Omicron mutation factory. 😬
And we know it replicates a LOT.
It will be doing so in multiple countries around the world.
I’m sure Pfizer/Moderna etc., are already working on an Omicron specific vaccine.
Alas, at the same time, Omicron is blindly (via random mutations and evolution) working on multiple mutant strains.
Most will probably come to nothing. 🙏🏻
But, you can see other possibilities. 😱
As observed by @dgurdasani1 earlier today, “We’re sleepwalking into a crisis.”
There appears to be (almost) complete collective denial about the challenge we are facing, because we’re “done with Covid”?
@SashaSagan It's just as well that there is no charge (I hope! 🙏🏻) for quoting someone, or I would have incurred significant debt by now, given how often I have quoted your father.
I'm sure you already know his profound impact on so many of us.
My first "encounter" (via TV) with him was when he did the Royal Institution Christmas Lectures in 1977. I was a geeky schoolkid interested in science.
Your dad was inspirational.
I didn't become an astronomer, but I did subsequently navigate my way through a couple of chemistry degrees.
His beautful book dedication to your mum in "Cosmos", is my favourite such dedication of all-time. 😊
Exponential growth, BUT you can still go to panto? 🤦🏻♂️
As a nation, we’re approaching the idyllic halcyon period between the moment the brakes get slammed on for an emergency stop, and the moment we fly through the windscreen (because, as you know, seatbelts are only for wimps).
I just heard @SCrabbPembs on #DailyPolitics saying Plan B measures were already in effect in Wales and hadn’t curbed the spread of Delta (which is true).
Logic might then suggest, that FAR greater restrictions might be needed to curb the spread of a MORE transmissible virus? 🤔
Apparently not. It seems that (for now) is just crazy talk among our political class. 🤷🏻♂️
Watching the news coverage on the Plan B shenanigans tomorrow is just surreal. 🤦🏻♂️
“Will there need to be more restrictions before Christmas?”
‘But Boris Johnson may have a get out from claims he broke the law - because there is an exemption for “a vehicle being used for police, fire and rescue services”.’
An utterly selfish, narcissistic, arsehole always looking to play a “get out” card. 🤬
Yesterday, I learned a new Covid-related skill, how to calculate the doubling time for an exponential growth curve (in this case related to #Omicron cases growth in the UK).
Yesterday, that value worked out at 2 days.
Adding in today's data, now makes it a value of 1.4 days! 😱
My instruction manual for learning how to do this calculation, was this amazingly helpful video by @pk_kent 🙏🏻