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Delta Is Now the Dominant Coronavirus Variant in the U.S.: Coronavirus Updates
- chasebank 5y agoBetween the vaccinated and the previously infected, how is the virus still finding hosts?
- senectus1 5y agono one ever said vaccines and surviving previous infections meant you'll never get it and or spread it again. vaccination is going to limit the rate of growth, and the impact when infected. It may also mutate around the vaccination and previous infection protections. We're going to be living with it possibly forever.
- aetherspawn 5y agoOh boy… time to shut down the whole world for 3 weeks. Edit: Arr! This post is a sinking ship! But really, most countries are locking down and getting rid of the virus. Just not at the same time… that’s a shame, because it just moves all around the world in waves. In Australia we eliminated COVID several times, just to catch it from India and the US… over and over. Yes, we have a few vaccines here. But not available to anyone except medical professionals. Vaccination rate is very low, perhaps the lowest in the world. Yet in between lockdowns and catching COVID from other countries, we live normally. Isolation of 2-3 weeks easily defeats COVID, even if delta strain and hundreds of cases, without vaccination. Global coordinated isolation seems like the safest and fastest way to end the pandemic. It works in Australia.
- crooked-v 5y agoUnfortunately, many of the world's major countries, including the USA and most countries of Europe, lack the political will for anything more than halfassed quasi-lockdowns that just drag things out.
- abystander 5y ago> lack the political will In other words, countries outside the USA and many in Europe lack a culture of freedom.
- TranquilMarmot 5y agoWe _are_ going to be living with it forever... most likely it will become endemic after a a while and circulate among the population like the common cold or the flu. But that is many years off. https://doi.org/10.1126/science.abe6522 https://doi.org/10.1126/science.abe6522
- sudosysgen 5y agoThere's no reason it would have to be that way. We could eradicate any given influenza strain or individual cold virus if we really wanted to.
- crooked-v 5y agoThe problem with that is that various bird species act as an influenza reservoir. Unless you want to perform extinction-level mass culling of birds, you're not going to be able to wipe it out for any significant amount of time.
- sudosysgen 5y agoAssuming universal vaccination, that specific strain is actually pretty much going to be wiped out. You're going to see other strains replace it, yes, but if we had in theory a 90% effective vaccine against every single strain of influenza we would be able to completely stop human transmission of influenza for a very long time.
- BurningFrog 5y agoGood news: none of us will have to live with this forever!
- belltaco 5y agoThere is a good overlap between those two groups, looks like. Plus the delta strain seems to be causing more symptomatic cases(but still very few hospitalizations and deaths) in vaccinated folks than the previous strains. So that's causing more spread.
- dehrmann 5y agoRemember that vaccination status isn't uniformly distributed, so communities with 35% of people fully vaccinated, even with 20% of that having had it, will still see it spread with ease, especially as restrictions are dropped. That said, herd immunity thresholds vary massively. They're much lower in, say, Wyoming, than NYC.
- runako 5y ago- CDC estimates that ~114 million Americans have been infected - Approximately 158 million Americans have been vaccinated If you generously assume no overlap between these populations, that leaves ~56 million pristine hosts. Vax resistance is clustered geographically, so those 56 million are more likely to be near other unvaccinated people. 56 million is a lot of people. If you assume any meaningful number of people have been vaccinated after being infected, there could quite easily be 100 million or more latent hosts in the US. (Also vax effectiveness is not 100% so we expect some number of folks to contract the disease after being fully vaccinated.)
- onlyrealcuzzo 5y agoIf you got coronavirus, you can be reinfected, too - especially with the P.1 variant [1]. [1] https://pubmed.ncbi.nlm.nih.gov/33909850/ https://pubmed.ncbi.nlm.nih.gov/33909850/
- dragontamer 5y agoFor the downvoters, this is Araraquara city study. A 2nd city adding to the case study first found in Manaus city. Even if you think that Manaus city's study was poorly done, the fact that this is a 2nd study in a 2nd city with similar results adds on to the evidence. The author list does not seem to match the Manaus city, aside from Ester C Sabino (who was 1st author in the Manaus study, but seems to be a much later author in this newer study). I'm assuming they got Sabino to discuss the other study in the context of this one.
- Animats 5y agoUS vaccination rate is 43.7% (both doses for vaccines which require that). US coronavirus antibody seroprevelance rate was 22.0% as of late April 2021.[1] The data runs about 2 months behind. (Don't add those directly; there's overlap.) The 22% figure comes from a CDC national epidemic surveillance program. They take random samples from commercial blood labs, using samples taken for other medical purposes, and test them for antibodies. The test used now can distinguish between people who have had the disease and those vaccinated. So this is a low cost way to track the epidemic. There's state by state data for both vaccinations and seroprevelance, and it varies a lot by state. [1] https://covid.cdc.gov/covid-data-tracker/#national-lab https://covid.cdc.gov/covid-data-tracker/#national-lab
- tstrimple 5y agoBecause Republican (Trump) propaganda has convinced millions of conservatives not to get vaccinated. Fewer than 50% of Republicans have been vaccinated and of those, 75% say they will never get it. This is compared to over 85% of Democrats who have received at least the first vaccination shot.
- loceng 5y agoVaccine is only 64% effective against Delta variant.
- onlyrealcuzzo 5y agoImportantly, it's still 93% effective in preventing hospitalizations [1]. [1] https://www.cnn.com/2021/07/06/health/israel-pfizer-efficacy-delta-variant-intl/index.html https://www.cnn.com/2021/07/06/health/israel-pfizer-efficacy...
- asah 5y agoHmmm, 7% requiring hospitalization = not odds I want to take.
- usaar333 5y agoIt's not 7% requiring hospitalization - it's that only 7% who would have been hospitalized had they developed an infection are hospitalized if they catch covid (relative, not absolute odds) For the record, ~2% of flu symptomatic illnesses result in hospitalization (https://www.cdc.gov/flu/about/burden/index.html https://www.cdc.gov/flu/about/burden/index.html), so unless you are terrified every winter, this probably shouldn't be considered that high of a risk.
- asah 5y agoYes obviously, I'm not an idiot. The point is that people round up anything above 90 as being 100, when actually low 90s is pretty bad. Arguably you did this too: 2% vs 7% don't round down to the same thing: one is 3.5 times higher.
- deleted 5y ago[deleted]
- chroma 5y agoIt’s not a 7% chance of hospitalization. It’s the normal hospitalization rate times 0.07. If you’re 40 years old, that means your chance of hospitalization is around 0.05%, or 50 in 100,000.[1] The risk is even lower if you’re healthy (no obesity, diabetes, heart disease, etc). 1. I calculated this by taking the cumulative hospitalization rate (https://www.statista.com/statistics/1122354/covid-19-us-hospital-rate-by-age/ https://www.statista.com/statistics/1122354/covid-19-us-hosp...) and assuming that 20% of Americans have gotten covid, then taking 7% of that. It’s not perfect but it’s within a factor of 2 of the real risk.
- mdasen 5y ago> We're feeling pretty good right now because it's the summer. But come winter, if we still have a significant percentage of the population that is unvaccinated, we're going to see this virus surge again Does anyone have more information on why it's a bigger issue in the winter? Is it because people spend more time indoors in the winter where spread will be more likely while in the summer people will spend their time outside where spread is less likely?
- bobbylarrybobby 5y agoYep, that’s the theory. You can look to this past winter as an example — things got way worse than they were over the summer
- toomanyrichies 5y agoI have to guess that the busy travel season of Thanksgiving, Christmas, and New Year plays a part as well. These are peak crowd-gathering holidays, at least in the U.S. Lots of visiting relatives, lots of transiting through crowded airports, lots of cramped airliner cabins and recycled air, etc.
- Consultant32452 5y agoThe strange truth is we don't know why disease waxes and wanes with the seasons. There's a lot of hypothesis but they've mostly been disproven. In particular any thoughts about the weather and how it impacts behavior are eliminated due to the fact that we have two hemispheres that are in opposite seasons and constant international travel.
- whoisburbansky 5y agoI’d love sources/anything to show how the seasonal hypotheses have been disproven.
- Consultant32452 5y ago"Eliminated" was probably too strong, but here's some relevant scientists talking about how we don't understand why seasonal disease is seasonal. https://www.sciencemag.org/news/2020/03/why-do-dozens-diseases-wax-and-wane-seasons-and-will-covid-19 https://www.sciencemag.org/news/2020/03/why-do-dozens-diseas... >Even for well-known seasonal diseases, it’s not clear why they wax and wane during the calendar year. “It’s an absolute swine of a field,” says Andrew Loudon, a chronobiologist at the University of Manchester. Investigating a hypothesis over several seasons can take 2 or 3 years. “Postdocs can only get one experiment done and it can be a career killer,” Loudon says. The field is also plagued by confounding variables. “All kinds of things are seasonal, like Christmas shopping,” says epidemiologist Scott Dowell, who heads vaccine development and surveillance at the Bill and Melinda Gates Foundation and in 2001 wrote a widely cited perspective that inspired Martinez’s current study. And it’s easy to be misled by spurious correlations, Dowell says.
- RobertRoberts 5y agoNot one covid vaccine is FDA approved yet. If it can keep mutating it seems a healthy life style will protect you more universally than targetted vaccines that are longer relevant. (Down votes coming for having a critical thought that doesn't support the orthodoxy)
- tomtheelder 5y agoFDA approval is a rightfully slow process but we have an absolute ocean of data to support safety and efficacy. Vaccines appear to work fairly well against the delta variant , and sensible lifestyle choices and vaccination are hardly exclusive. It feels like, especially with your addition in parentheses, that your goal here is simply to anger people.
- redis_mlc 5y agoThe GP has a good point - corners have been cut with trials. Minimizing that fact doesn't change reality. A friend of mine is in the hospital with corona now, after getting the first vaccine dose about a month ago. Anecdotal, but still very concerning. > your goal here is simply to anger people The truth angers many people, especially the left. That's just too bad.
- alevskaya 5y agoThis is a terrible, uninformed take. Had we seen any serious unwanted side-effects during the EUA authorizations the FDA would withdraw the authorization, and the vaccines have continued to have excellent track records across over a hundred million patients! No known variant incl. delta shows full antigenic escape, and we have plenty of evidence of the protective benefit of vaccination in patient outcomes. Coronaviruses are slow-evolving RNA viruses (due to their proofreading enzymatic activity, single strand, etc.), and though we are certainly seeing a period of new host adaptation, SARS-COV-2 is almost certainly not going to be like H1N1 influenza.
- linuxftw 5y agoHow many people have the vaccines killed? This isn't rhetorical, I want the hard numbers.
- 71a54xd 5y agoWe need one more winter to burn through the rest of the population. There's no way around it unfortunately, in my view. I got the vaccine, forcing people to get the vaccine isn't going to do much either. I was in NYC for the entirety of 2020 so I'm not trying to minimize here, but the fear mongering and doom and gloom is really starting to get old. If you got the vaccine, resume living normally, wear a mask on public transit (heck wherever you want) but move on. People who decided to not get the vaccine made that choice, if they pay the price... so be it... Move on...
- throwawayboise 5y agoAgree. You can get vaccines on a walk-in basis almost everywhere now (in the USA at least). We have more vaccine than people who want it. Everyone who wants to be vaccinated is vaccinated. Time to drop all the drama and get back to normal.
- dragontamer 5y agoExcept cancer patients: whose immune system is so compromised their bodies can't afford to get vaccinated (and even if they were vaccinated, there's a low chance that their immune system would protect them). Their only hope of survival in these times is for everyone they meet to be vaccinated: for herd immunity. Immunocompromised individuals exist. As a society, we're supposed to vaccinate ourselves to protect our most vulnerable.
- anonuser123456 5y agoBecause children under 16 are not people? Long covid is a thing in children too.
- votepaunchy 5y agoThe lower age limit has been 12 in the US for nearly two months. https://www.fda.gov/news-events/press-announcements/coronavirus-covid-19-update-fda-authorizes-pfizer-biontech-covid-19-vaccine-emergency-use https://www.fda.gov/news-events/press-announcements/coronavi...
- gentleman11 5y ago> And it's crucial to increase vaccinations in other countries, says Saad Omer, a vaccine researcher at Yale. "The world has to get its act together," Omer says. "Otherwise yet another, potentially more dangerous, variant could emerge." Where I live, approx. 1/3 people claimed to want to avoid the vaccine a month or two ago. We’re up to maybe 75% vaccination rate, so many changed their minds. It’s hard to focus on other countries when your own citizens are holding out