Omicron Time
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* How transmissible is Omicron?
* Are Omicron infections milder, or more severe?
* Can Omicron become dominant in this Delta environment?
* How much can Omicron evade the vaccine-immunity and/or natural-immunity?
These are the only questions people should care about, and it seems like none of these questions have an answer yet.
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So I guess... lets wait another week and see if people have good answers to these questions. And if we don't have answers on Dec. 9th, then we will wait another week for Dec. 16th.
* How transmissible is Omicron? Very. But how much? Based on current data, there's a sort of invariant involving a tradeoff between greater escape of post-infection/post-vaccination immunity and greater transmissibility where anything along that invariant line can explain it's aggressive rise. Either way, it doesn't really matter. If it continues to behave as it has, we'll see a lot more of omicron. ~60% confidence
* Are Omicron infections milder, or more severe?
That's the BIG question right now. I've seen one MD describe patients that they've seen with omicron as being mild. On the other hand, there's also been a significant rise in hospitalizations in affected areas, however, if there's simply more infected, that would be expected. I don't have a good guess here. We haven't had enough time to find out.
* Can Omicron become dominant in this Delta environment?
Given it's very rapid rise to dominance in the small subset of testing data I've seen, I'll put money on it out-competing delta. ~60% confidence
* How much can Omicron evade the vaccine-immunity and/or natural-immunity?
Another good question. Despite the fact it has a lot of spike-protein mutations, and many experts believe that immune escape is likely here: I'm not convinced that's the best metric, and I've only 20-30% confidence in my agreement with it. I'll revise this according to the following pieces of evidence I expect to see, in increasing order of how much confidence I'll gain in that assessment for each piece: I'll gain more after I hear a lot of anecdotes about vaccinated getting sick, more if I see lab results confirm lower antibody affinity, and more still after actual numbers to high statistical significance confirm that previously infected or people 2-6 months post-vaccination have a high rate of infection en par with the rest of the population.
The variants of concern (as defined by WHO) thus-far are Alpha, Beta, Gamma, Delta, and now Omicron. (The others were "variants of interest", but never graduated to a higher status than that).
So about 50% of the variants of concern (Alpha and Delta) became dominant in their time. The other 50% were concerning with their respective "superpowers", but were outcompeted by the others.
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So I give 50/50 odds that Omicron becomes dominant.
Maybe a bad analysis, but hey, everything is bad analysis right now until we get better data.
Note: there are many, many variants, including "Delta Plus" variants (offspring of Delta), Lambda, and other variants who grabbed the headlines. Gamma in particular took over South America (graduating into a Variant of Concern), but never managed to spread further than that.
Lambda also spread rapidly in South America, but also was vanquished by Delta.
So very high spread in a local area does not necessarily mean it will spread rapidly in other settings (especially since Delta seems so good at outcompeting all these variants).
In South Africa omicron has replaced delta. Why should we expect delta to dominate omicron elsewhere?
Of course omicron may fail to be the dominant variant if there is a "better" one, but it seems more likely than not that delta will be replaced.
But if we see here an apparently-sudden jump to a significantly different variant, does that make it less surprising that the original strain was novel?
The number of scenarios where the new variant is engineered are vastly reduced, since it's less likely that this variant is a lab leak.
Other scenarios can still be within the realm of plausibility, but there are fewer of them.
1) Covid-19 was more dissimilar from previous coronaviruses than Omicron is from current ones.
2) There is a lot more covid-19 in the world now so rare occurrences are more common.
3) There was other evidence for the lab leak hypothesis. A cover up from China, a viral research lab in the city with the outbreak, etc...
And I still don't think Omicron is as different from original Sars-Cov-2 as Sars-Cov-2 was to known predecessors.
https://covariants.org/variants/21K.Omicron https://nextstrain.org/groups/neherlab/ncov/21K.Omicron
I don't think COVID-19 is a disease that can be eradicated.
The fewer hosts out there though, the fewer opportunities it has to mutate.
It sounds like Omicron has a number of variations vs Delta and other major variants.
Is it possible that someone who is simultaneously infected with both Delta and Omicron to generate virus particles that utilize proteins from both variants in the same viral particle?
If this can occur, would the genome of those viral particles get blended together, or would it just carry the genome of one or the other variants?
i.e. would co-infection of multiple variants simultaneously increase mutation rate, or could hybrid variants appear?
Why don't we talk about this more?
People aren't talking about it much because we don't even have a bad guess about severity, much less a good guess.
It'll takes a while to figure out severity. Deaths happen 2-8 weeks after symptoms. Which means we're still probably several weeks before we have any good data on severity. And this data is still really hard to parse out especially with immune evasion which makes the average case more mild, even if the disease is more virulent.
Median time for first symptoms is ~4.5 days: https://www.cdc.gov/coronavirus/2019-ncov/hcp/clinical-guida...
Within a week, we should start to have a decent picture WRT severity. Obviously, as time goes by, that picture will only get clearer.
If this new strain is basically a common cold, then it's in our best interest for it to spread as quickly as possible. And that's normally what viruses do, they get less virulent. The vaccines have obviously failed at slowing the spread and have put evolutionary pressure on the virus to evade the very specific spike protein that the vaccines contain. If we all get broader protection, then this thing will be over without the need for liberty-crippling mandates.
Instead, it's almost impossible to get any sort of sober analysis of how this variant's symptoms differ from other variants.
The strategy of just let it wash over us so we can get back to normal is not quite as horrifying as it was in 2020 when it meant hundreds of millions of damaged bodies and 3 million dead but it remains ridiculous. The unvaccinated who are liable to experience something no better than earlier strains aren't evenly distributed and areas where they are concentrated are especially vulnerable to their health care systems being overwhelmed but the truth is even in areas where ONLY 1 in 3 is unvaccinated we don't have the capacity for much of the population to linger in the hospital for weeks or months before deciding whether to die or not.
We don't have enough antivirals manufactured yet nor do we know the long term outlook of survivors even after we can manufacture more. We don't even know if they will be as effective with the new strain!
We don't have such a healthy economy that we can afford to go through another covid induced slump and believe me if deaths and illness start going up we will have another big ass slump whether an official lock down is declared or not.
For at least 2022 covid is going to be a substantial workplace hazard and it is absolutely reasonable that if someone gets sick at work and experiences substantial costs, disability, or death they treat it just like a workplace accident and if we do that then mandates become the only tenable option to reduce liability and OSHA will be only a convenient excuse for your employer is in fact doing to cover their own asses.
From the perspective of a worker why should I work at a place that wont even make you get a shot so you don't murder me. It seems to me a lot like letting you drive the forklift drunk an entirely unnecessary risk. It's a sellers market and I can sell my labor elsewhere.
'why should I work at a place that wont even make you get a shot so you don't murder me.' If you believe your vaccinations protect you, then your statement is nonsensical. If your vaccinations don't protect you, then forcing others to take what does not work is also nonsensical.
I doubt you run a forklift.
https://www.nature.com/articles/d41586-021-02081-w
Absent that there is no reason to believe its effective. Conversely we actually have data that Pfizers pill is up to 90% effective at preventing severe covid symptoms.
> If you believe your vaccinations protect you, then your statement is nonsensical. If your vaccinations don't protect you, then forcing others to take what does not work is also nonsensical.
This is a common rejoinder so its worthy of addressing again. I have every reason to believe that vaccines as of delta greatly decrease my chance of getting covid and greatly decrease my chances of dying of it. Nobody ever claimed that they are 100% proof against covid. Individuals can still get covid. They can still get damaged cardiovascular systems and lungs. They can still die. This is more true for some people than others. Every medium to large workplace surely has several who are far more vulnerable than others who deserve to be safe.
I'm not sure how this issue can be solved to be honest, while my go-to answer is to have a strictly apolitical regulatory board which can demand retractions are published (after a transparent investigation) with the same headline prominence and ad spend as the initial article or video that was deemed to be alarmist or misleading but that has problems in itself; such a system introduces a "who is fit to determine objective truth?" debate where the regulatory board could determine 2 + 2 = 5 and there'd be very little that could be done to oppose this obvious falsehood.
And still "[vaccination] is better than a naive immune system" with the conspicuous gap of where "already infected / recovered / might not have had symptoms even" might go.
"effective vaccines actually suppress variant formation" is going to get him yelled at for supporting antivaxer arguments, I bet.
And yet you call this simple, scientific fact that wouldn't have been remotely controversial two years ago an "antivaxer argument"
Although vaccinated people with a breakthrough infection are much less likely to become severely ill than unvaccinated, the new study shows that they can be carrying similar amounts of virus and could potentially spread the virus to other people
Could potentially spread is not the same as saying their equally likely to spread. Fewer infections and less severe cases both reduce transmission to the general population at least in the short term. Long term it may be that effectively everyone gets either COVID and or the vaccine.
That said, if people are equally infections while sick, but their sick for a shorter period then their less likely to infect others.
The problem is that vaccines are not completely effective (efficacy goes down with time, is lower against new variants, there are breakthrough infections, etc.) so variant formation is not completely supressed.
Everything being equal (given one exposed or even one infected person) you may have less variant formation with vaccines. But when you have more infections you will end up having more variants.
That the number of infections would increase as people's behaviour adapted to the lower fatality rate was not unexpected: people take more risks because the prognosis of an infection is not so bad anyway, once infected they may have a mild, undiagnosed evolution and still contribution propagation...
And it's no longer an hypothetical scenario. In many European countries there are more infections now than ever before.
As he explains in the very next sentence strengthening the immune response lowers the risk of prolonged battles and chances for mutation which is what we want
I still don't get what makes covid different from the flu. Yes, covid is a little bit more deadly, but other than, why don't we just accept it as part of our lives like we did with the flu?
The flu typically kills the extreme elderly or people with extremely compromised immune systems. Aka they might die at 94 vs 95. COVID on the other kills people who are relatively much healthier, someone that dies at 75 vs 95 lost 20 years not 1.
This is also why people 70+ are almost fully vaccinated in the US. For that age range it’s an extremely serious disease with a high chance of killing them after infection.
Older people certainly dominate the vulnerable groups, but there are many other people living with various forms of immune system dysfunction. This is why the rest of us need to mask, vaccinate, and get boosters to minimize our chance of propagating the disease to the more vulnerable parts of our population. Not doing so is basically saying you don't care about other people.
https://www.nature.com/articles/s41598-021-83040-3
The average age of COVID-19 deaths in developed countries is about 80. Fortunately the vaccines and other treatments have greatly reduced the risk of death.
https://www.ons.gov.uk/aboutus/transparencyandgovernance/fre...
https://www.wsj.com/articles/the-covid-age-penalty-115920032...
Edit COVID has actually killed 800,000 Americans.
20x of 30k < 800k. You can cut argue it should cover multiple years of flu, except the first US COVID case was less than 2 years ago and it really only got started in March 2020. Per month COVID has killed more people than the flu does per year on average and it’s not exactly stopping this winter.
Years lost are then on top of that deaths multiplier.
That said coronavirus have long been one of the causes of the common cold and occasionally cause diseases of significant concern like SARS, COVID, etc. That’s likely around for the long haul unless some massive medical breakthroughs show up.
Because several areas are very near 100% hospital capacity with COVID patients still, and a COVID ICU visit is much more demanding from a timespan and resource perspective in terms of staff and equipment. We can't risk relaxing restrictions when hospitals are unable to bear an increase in patients.
From a cynical point of view, COVID policy is about protecting infrastructure - and only save lives as a side effect.
This is why many places had specific policy for essential services and essential workers, daycare and schooling, transportation, - as well as putting restrictions on private industry which in some countries has become significantly more centralized like meat processing.
What's more, regular care and non-urgent surgeries are put on hold, increasing the risk that patients experience more severe symptoms. Nurses and doctors are burned out and consider leaving their jobs.
That's why we can't "just accept it".
Primarily because our health infrastructure has no capacity as is. Most places are really struggling, both with space and staff. Add to that the PTSD a lot of healthcare workers will be dealing with for decades to come.
And losing 1-3% of our total population isn't great.
But to your point: we will end up living with COVID as an endemic, so long as more people get vaccinated. We need to look at global vaccination rates beyond just local ones, too, as variants will continue to mutate throughout the world. With the vast, vast majority of folks winding up in the hospital being unvaccinated--taking up space, time and money--we're going to be struggling for a while.
And COVID patients are impacting the capacity for people to get routine check ups, and in some locations emergency work, done. It's bad for everyone. Until the numbers are low enough that our doctors and nurses aren't being pushed beyond their limit, we can't consider it sustainable.
https://www.cdc.gov/coronavirus/2019-ncov/cases-updates/burd...
> Globally, about 3.4% of reported COVID-19 cases have died. By comparison, seasonal flu generally kills far fewer than 1% of those infected.
https://www.who.int/director-general/speeches/detail/who-dir...
We know this number was likely under-reporting the total cases, due to asymptomatic cases we didn't test for, but I think a range of 1-3% mortality for COVID, letting it go unchecked, is reasonable. This isn't even accounting for variants, as Delta evidenced.
Deaths will climb as our hospitals become encumbered, so we can't rely on the low-range estimates if fewer people are able to receive treatment. This is why we can't just accept COVID as something we live with and do nothing about quite yet.
The additional amount of hospitalizations from COVID19 is crushing our hospitals, even with some vaccine support. A number of states have run out of hospital beds in the August 2021 COVID19 Delta-variant surge.
Fortunately, we've got vaccines, monoclonal antibodies, and dexamethasone today compared to March 2020. With all of these new techniques, the death rate has dropped, and treatment of COVID19 has gotten easier.
Still, we're stressing our hospitals to severe limits in parts of the country. We'd ideally want more slack, so that our nurses / doctors can get a well deserved break from this pandemic.
Are you implying that since variants exist, then the vaccines aren't effective?
That's not what the data shows[1].
I'd point out that South Africa, where the Omicron variant was first characterized, vaccines have only ~30% penetration in the population[0], making it a good reservoir for mutated variants to spread.
[0] https://ourworldindata.org/covid-vaccinations
[1] https://www.news-medical.net/news/20211123/Systematic-review...
https://www.scientificamerican.com/article/covid-variants-ma...
(Yes, I know the vaccine isn't completely sterilizing, but it still has significantly tamped down the degree of spread).
Isn't the fact that folks with malfunctioning immune systems are surviving rather than dying evidence that the vaccine is working? Granted, their survival has the side effect of a prolonged infection, but immunocompromised folks don't fare well against COVID.
A very good point.
At the same time, in areas where vaccination rates are low, more folks are infected and a larger proportion of the immunocompromised (as well as the at-large) population will likely be infected.
Making places like South Africa, with less than 1/3 of the population vaccinated, more likely to be reservoirs for the virus, increasing the likelihood of both more variants and an easier foothold for those variants to have their initial spread.
https://www.businessinsider.com/delta-variant-made-herd-immu...
That's as may be. But it's orthogonal to my point.