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T. Ryan Gregory Profile
T. Ryan Gregory

@TRyanGregory

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Professor of evolutionary biology. I would like there to be less death, pestilence, war, and famine. Assume sarcasm. No one could have foreseen this. He/him.

Ontario, Canada
Joined June 2010
Don't wanna be here? Send us removal request.
@TRyanGregory
T. Ryan Gregory
2 years
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@TRyanGregory
T. Ryan Gregory
2 years
Do you know how bad you have to be at science to think that a mask does not block a virus but does block oxygen and carbon dioxide?
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@TRyanGregory
T. Ryan Gregory
9 days
On arrival in Japan: "I don't really want a toilet to spray me in the butt." Upon returning from Japan: "What, am I just supposed to wipe my own ass like some kind of caveman?" One week after returning from Japan:
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@TRyanGregory
T. Ryan Gregory
12 days
Out of curiosity, when was the last time massive student protests turned out to be on the wrong side of history, and the state using police violence against them turned out to be right?
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T. Ryan Gregory
2 years
6 for 6!
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T. Ryan Gregory
2 years
To be clear, "we strongly recommend masks indoors" = "we know that COVID-19 is airborne, we know it's not mild, we know the pandemic isn't over, but our courage falls short of mandating protections because the loud people will get mad at us if we do."
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@TRyanGregory
T. Ryan Gregory
1 year
Going to say it again. The XBB.1.5 variant (Kraken) that is absolutely rocketing in the USA and spreading globally, which has both major immune escape and high ACE2 binding, *evolved in New York*. Not in China. In. The. USA.
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@TRyanGregory
T. Ryan Gregory
2 years
COVID is: * Airborne * Still evolving rapidly * A risk to all age groups * Capable of re-infecting * Dangerous beyond respiratory effects (i.e., long COVID is very real) COVID is NOT: * Endemic * Inevitably becoming milder * A cold or the flu * A regional problem * Over
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@TRyanGregory
T. Ryan Gregory
2 years
Reminder: people who say viruses inevitably evolve to become mild or equate "endemic" with "mildly inconvenient" do not understand viruses, or evolution, or endemicity.
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@TRyanGregory
T. Ryan Gregory
2 years
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@TRyanGregory
T. Ryan Gregory
2 years
I don't want to "get back to normal". I want lots of things to change. In fact, I can't imagine living through the worst public health crisis in a century and eagerly awaiting the chance to demonstrate that we've learned nothing.
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@TRyanGregory
T. Ryan Gregory
2 years
It needs to be emphasized that what we're seeing with SARS-CoV-2 variant evolution now is something new. 🧵
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@TRyanGregory
T. Ryan Gregory
2 years
People who think "endemic" means "no big deal" do not live where malaria is endemic (600K deaths per year, mostly children), or where tuberculosis is endemic (1.5M deaths per year), or where measles remains endemic (200K deaths per year).
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@TRyanGregory
T. Ryan Gregory
6 years
Two married colleagues each brought their son to a lecture because daycare closed last-minute. This was mentioned in both of their student evaluations. Try to guess which prof was called "unprofessional" and which was described as "a great parent". #EverydaySexism #WomenInSTEM
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@TRyanGregory
T. Ryan Gregory
2 years
I would prefer not to get COVID and risk neurological effects of long COVID. I need my brain for work.
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@TRyanGregory
T. Ryan Gregory
1 year
People who think there's nothing we can do to stop mass infectious disease should not be in charge of our response to mass infectious disease.
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@TRyanGregory
T. Ryan Gregory
2 years
Omicron is not a Pokemon-style "final evolution" of SARS-CoV-2. It's still mutating rapidly, including in the spike protein, and with the amount of replication it is doing out there right now, we can expect new variants. Hoping is not a strategy. Giving up is not a plan.
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@TRyanGregory
T. Ryan Gregory
2 years
Schrödinger's COVID: a pandemic that is simultaneously over thanks to hybrid immunity (such that mitigation is unnecessary) and running so rampant that everyone being infected repeatedly is inevitable (such that mitigation is impossible).
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@TRyanGregory
T. Ryan Gregory
12 days
Reminder that Israel destroyed every university in Gaza.
@spectatorindex
The Spectator Index
12 days
JUST IN: Netanyahu says what is happening on US college campuses is 'horrific'
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T. Ryan Gregory
1 year
If you're in a public building, you're very likely to: * Not breathe asbestos * Drink clean water * Benefit from sewage treatment * Have access to fire exits * Be kept safe by building codes * Not be allowed to smoke Not one of those was based on a randomized controlled trial.
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T. Ryan Gregory
2 years
Probably should have voted, Ontario.
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T. Ryan Gregory
2 years
The question is not whether they had a pre-existing condition or comorbidity. The question is whether they would still be alive today if not for COVID.
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T. Ryan Gregory
2 years
Anyone else feel completely let down by leaders at every level and deeply disappointed in the selfishness of so many fellow humans?
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T. Ryan Gregory
11 months
Hats off to @PeterHotez , who endures an incredible amount of abuse but keeps on going with grace and class.
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T. Ryan Gregory
2 years
Please update your terminology if you do not want to be part of the problem: 🧵 * If you're talking about masks or vaccine passports, they're protections, not restrictions. Seatbelts and drunk driving laws and driver's licenses are not restrictions. 1/n
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T. Ryan Gregory
1 year
They're literally cancelling surgeries at children's hospitals. But wearing a mask or avoiding unnecessary gatherings right now is too much to ask of grown-ups.
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T. Ryan Gregory
1 year
RSV rates are not higher this year. More kids are ending up in hospital, though. That is NOT consistent with "immunity debt" (even the weaksauce, trivially true population version), and it IS compatible with immunity damage from SARS-CoV-2 infection.
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T. Ryan Gregory
1 year
The immune system is not like a muscle and getting infected is not like lifting weights.
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T. Ryan Gregory
11 months
Um, if COVID-19 actually increased heart attacks, strokes, diabetes, etc., and if long COVID rates really are 10%, don't you think we'd see study after study showing this and news reports on health issues and labour shortages exactly like the ones we totally do see all the time?
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T. Ryan Gregory
2 years
Socially speaking, one of the hardest things about this point in the pandemic has been realizing that not only have we squandered an opportinity to address inequities and improve so many aspects of society, we seem to have regressed to an even more selfish state than before.
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T. Ryan Gregory
1 year
Reminder, as we face another possible respiratory virus pandemic, that we *could* have worked on improving indoor air quality and we *could* have normalized the use of simple mitigations like N95 masks. But instead, "learn to live with pathogenic viruses" narratives won out.
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@TRyanGregory
T. Ryan Gregory
2 years
Stop saying "anxious" when the correct term is "appropriately concerned".
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@TRyanGregory
T. Ryan Gregory
2 years
Things that are NOT lockdowns: ❌ Wearing masks ❌ Vaccines and boosters ❌Ventilation and air filtration ❌ Testing and isolation ❌ Paid sick days ❌ Crowd size limits ❌ Physical distancing Things that are lockdowns: ✅ Lockdowns
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T. Ryan Gregory
1 year
Welcome back! So glad you only had mild symptoms while you were off the grid for... *checks notes*... 17 days.
@CDCDirector
Mandy K. Cohen, MD, MPH
1 year
Thank you to my family and CDC staff for support while I recovered from COVID-19. I am fortunate to have only had mild symptoms, which I credit to being up to date on my #COVID19 vaccines.
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T. Ryan Gregory
2 years
I was asked today what I think universities should be doing in response to the pandemic. Buckle up. 🧵
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T. Ryan Gregory
2 years
A reminder: * COVID is airborne. * Herd immunity did not happen. * Omicron was not mild. * Kids do get sick. * Transmission does occur in schools. * Each variant is not milder. * No wave has been an exit wave. Minimizers have been wrong about every single one of those things.
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T. Ryan Gregory
1 year
How to be better prepared for the next airborne viral pandemic: stop ignoring the current airborne viral pandemic.
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T. Ryan Gregory
2 years
If you thought masks and vaccine passports were bad for business, wait until you see what 100,000 cases per day does.
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T. Ryan Gregory
2 years
How to actually live with COVID: 🧵 * Ventilation and air filtration and CO2 monitoring, and listen to engineers * Masks (N95) in high transmission settings like schools when needed. * Do not drop protections the moment cases decline. Get R below 1 and keep it there.
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T. Ryan Gregory
2 years
* COVID is airborne. * It is not mild, the flu, or a common cold. * Kids can get, transmit, and become very sick with it. * It is transmitted in schools. * Vaccines work but they are not enough. * Ventilation, filtration, and masks work. * Long COVID is very real and very bad.
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T. Ryan Gregory
2 years
The "experts" who spent 2.5 years telling us that we didn't need to do anything because COVID was under control are now telling us that we can't do anything because COVID is out of control.
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T. Ryan Gregory
2 years
Here's what people in Wakayama, Japan receive when they test positive and have to isolate. (This is for two kids). In North America, we're all about how people are cool if they shrug it off and keep working.
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T. Ryan Gregory
1 year
"Camel flu" is not flu. It's MERS, a coronavirus related to SARS1 and SARS2.
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@TRyanGregory
T. Ryan Gregory
2 years
I can't think of a more unambiguous illustration of how far we've fallen as a society in a very short time: from "We're all in this together" to "Do whatever you want" in only 2 years. (All of these posters are real.)
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@TRyanGregory
T. Ryan Gregory
2 years
I believe that everyone should have access to information about the ongoing COVID-19 pandemic. Many governments and public health officials are closing down the sharing of data, but there are still excellent independent sources. Here are some recommendations. 🧵
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T. Ryan Gregory
2 years
What is this ridiculous obsession with preventing any and all sense of fear during a raging pandemic and calamitous climate change? Your ancestors going back a few hundred million years experienced fear and it's one reason they survived and you exist.
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T. Ryan Gregory
1 year
COVID has killed more Americans in 3 years than have died in every war since 1775.
@Cernovich
Cernovich
1 year
Elon Musk has a great quote, “the biggest mistake engineers make is solving problems that don’t exist.” Covid was not a countrywide problem by May 2020. It was an obese and elderly problem. This was KNOWN. Solutions should have been tailored for those groups. Not hypochondriacs.
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T. Ryan Gregory
2 years
"We're all going to get it, so just give up." Not getting COVID is the best outcome. Not getting it twice is the next best outcome. After that, the next best outcome is not getting it three times. Then not getting it four times. You see how this works.
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T. Ryan Gregory
2 years
Let's say it's adenovirus. Or it's COVID. Or some interaction between adenovirus and COVID. Or some other virus. Or some other virus plus COVID. Wouldn't the obvious thing to do, right now, in any of the above scenarios, be to reinstate protective measures in schools?
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T. Ryan Gregory
1 year
A few things about MERS: * Media are calling it "camel flu". That seems a) designed to minimize and b) sure to confuse people. * "MERS" stands for "Middle East Respiratory Syndrome". Both "MERS" and "camel flu" are problematic names that encourage xenophobia.
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T. Ryan Gregory
2 years
Once there was a park where people liked to go camping. One summer, there were many reports of bears in the area and people were concerned that camping wouldn't be safe. The park ranger assured everyone that it was perfectly safe and encouraged them to keep camping.
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T. Ryan Gregory
2 months
Folks who got very angry with me over early claims that Israel attacked a hospital, or destroyed a university, or killed civilians waiting for humanitarian aid: you've been awfully quiet now that it's *all* the hospitals, *all* the universities, and *multiple* flour massacres.
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T. Ryan Gregory
1 year
I don't follow the logic of "COVID is never going away, so we might as well just do nothing about it". You know what else is never going away? Death. But the entire purpose of medicine is to prolong this inevitability and to reduce the amount of ill health in the interim.
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T. Ryan Gregory
1 year
What we did to mitigate COVID absolutely crushed flu. And there are, for real, people with medical and scientific training who think that's a bad thing.
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@TRyanGregory
T. Ryan Gregory
4 months
2024: "We have respirators that electrostatically capture viral particles, ventilation and filtration systems to clean indoor air, and UV lights to kill viruses." 1918: "That's incredible! What's it like living without all this illness?" 2024: "Oh, we don't actually use them."
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T. Ryan Gregory
2 years
We've seen maskless virologists doing the Macarena in a full ballroom. We've had emergency docs going to maskless after-conference parties. We see lots of infectious disease docs posting maskless selfies together at conferences. No wonder the public thinks the pandemic is over.
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T. Ryan Gregory
2 years
"Yes, the virus itself has caused millions of deaths, has shortened life expectancies, is known to affect many organs, and is associated with all manner of serious health risks, but what really worries me is the long-term effects of the lockdown from a year and a half ago." 🙄
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T. Ryan Gregory
2 years
Maybe the reason Twitter seems to be the only place where people are still concerned about SARS-CoV-2 is because Twitter is by far the best source of up to date information about SARS-CoV-2 these days? Far more so than most media, CDC, etc.
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T. Ryan Gregory
1 year
Sweden is experiencing a surge of respiratory viruses in children under 12. Sweden did not vaccinate children under 12. Anti-vaxxers, please stop posting inane "it's the jab" comments.
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@TRyanGregory
T. Ryan Gregory
2 years
COVID *is* airborne. Omicron is *not* mild. Transmission *does* occur in schools. SARS-CoV-2 is *not* endemic yet. If you were wrong about these things and you still won't acknowledge and correct your error, you are complicit and no one should take you seriously anymore.
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T. Ryan Gregory
1 month
This is advocating collective punishment of civilians, which is a war crime.
@USAmbUN
Ambassador Linda Thomas-Greenfield
1 month
A ceasefire could begin immediately if Hamas would just release the first hostage. The international community must put pressure on Hamas to accept the deal on the table.
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T. Ryan Gregory
2 years
How to not be complicit in making the 6th wave worse, a guide for media: 🧵 * Call them "protections" rather than "restrictions". * Stop saying "mild", "uptick", "wavelet". * Don't frame things around people "feeling" like there is a wave -- there is a wave.
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T. Ryan Gregory
1 year
LOL. Imagine thinking that "lockdowns" cause lifelong immunity problems but that multiple infections with a virus that affects just about every system in the body is irrelevant.
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T. Ryan Gregory
2 months
Let's be clear about what happened here. 🧵 1. Israeli real estate companies held Jews-only events to sell land in Israel and contested (Jerusalem) or occupied (West Bank) territories in Palestine. 1/
@NaomiAKlein
Naomi Klein
2 months
Wow. This happened outside a "real estate" event at a synagogue in Toronto selling property in illegal west bank settlements. But not to just anyone...
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T. Ryan Gregory
2 years
Anyone who believes that "for most of human history, we got infected regularly" is an argument FOR getting infected and AGAINST mitigation of infectious diseases knows very little about most of human history (or pre-history).
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T. Ryan Gregory
2 years
Sigh. 🧵 * Viruses don't automatically or inevitably evolve to become milder. Transmissibility and immune escape can be under strong selection but virulence may not be, especially if there are lots of hosts, transmission is easy, and infectiousness precedes symptoms.
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T. Ryan Gregory
2 years
I hate to be a downer, and I still strongly encourage people getting boosters, but I don't think the Omicron variant chasing approach to updating existing vaccines is going to do all that much. Not with zero mitigation measures in place. It just evolves too quickly.
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T. Ryan Gregory
1 year
Suddenly the West cares about new variants. Specifically, the hypothetical ones that haven't evolved yet in China, not the ones that have already evolved, are highly immune evading, and have been allowed to spread freely outside China.
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T. Ryan Gregory
2 years
Where is @CDCDirector ? Tested positive 8 days ago. If she's following @CDCgov guidelines, why wasn't she back to work after 5 days? If her infection is mild, why isn't she out there encouraging booster uptake?
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T. Ryan Gregory
1 year
Just to recap the latest a̶b̶s̶u̶r̶d̶l̶y̶ ̶r̶e̶g̶r̶e̶s̶s̶i̶v̶e̶ conservative ideas in 2023: * We should use child labour to solve the worker shortage * Poor people should skip meals * Old people should commit suicide * Everyone should live with widespread viral infections
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T. Ryan Gregory
11 months
You know when you see one other person wearing a mask in a store and it makes you feel much more comfortable? You are that person for someone else, quite possibly someone who is particularly vulnerable or has a loved one who is. Keep being awesome.
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T. Ryan Gregory
1 year
Credibility debt is caused by having claimed that: * COVID is not airborne * Herd immunity will end the pandemic * Kids don't get or transmit COVID * Immune-escaping variants won't evolve quickly * There will be no more waves * Omicron is mild * Only acute severity matters
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T. Ryan Gregory
2 years
I can think of many very good reasons why someone might wear an N95 mask while driving alone, and zero ways in which it's any of your business.
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T. Ryan Gregory
2 years
The effort to attribute the outbreak of child hepatitis to anything at all other than COVID is getting truly absurd.
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T. Ryan Gregory
11 months
If a doctor says you're *mentally ill* for *not wanting to breathe in wildfire smoke*, maybe his many, many similar takes on masks and the nature of evidence and mental health about the pandemic can be considered less than compelling.
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@TRyanGregory
T. Ryan Gregory
2 years
I *want* the pandemic to be over. We all *want* it to be over. But wanting it, believing it, or declaring it over does not make it so. Only collective action will make it so. Hopium is the anti-cure for a pandemic.
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@TRyanGregory
T. Ryan Gregory
1 year
See this, Canada?
@Raw_News1st
RawNews1st
1 year
#MadridSeLevanta12F Huge demonstration in Madrid. More than 250,000 people demonstrate to defend the public health system and protest against its privatization.
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T. Ryan Gregory
1 year
Out of curiosity, are there doctors who would gleefully stop washing their hands if it were no longer required? Or is it just masks during an airborne pandemic?
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@TRyanGregory
T. Ryan Gregory
4 months
🧵 There are 7 human coronaviruses (so far). Four of them cause the "common cold" (229E, NL63, OC43, HKU1). The three most recent are deadly (SARS-CoV, MERS-CoV, SARS-CoV-2). All three of the deadly ones use the ACE2 receptor. Only one of the common cold viruses (NL63) does.
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T. Ryan Gregory
1 year
It's really interesting when people say I tweet obsessively. Folks, we're dealing with a once in a century pandemic, and I'm doing what I do for a living -- explaining evolutionary concepts -- on a platform that is open to anyone who wants to read it. If you don't, don't.
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T. Ryan Gregory
2 months
Am I the only one who thinks it's a cop-out to only blame anti-vaxxers for measles, and not the infectious disease docs, virologists, epidemiologists, immunologists, and media who spent the last several years minimizing viral disease and implying that kids need to get infected?
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T. Ryan Gregory
2 years
It's getting harder and harder to remain in the control group of this mass infection experiment.
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T. Ryan Gregory
1 year
This has got to be satire.
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T. Ryan Gregory
2 years
Realists: "The number of patients in hospital with COVID is rising sharply again." Minimizers: "Yes, but many of those people aren't in the hospital for COVID, they got COVID while in the hospital." Realists: "That's also bad."
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@TRyanGregory
T. Ryan Gregory
2 years
Hospitalizations are lagging cases. Again. We lifted protections too soon. Again. A major wave is being minimized. Again. We're being told the pandemic is almost over. Again. Instead of being protected we're being gaslit. Again. We will be doing all of this again. And again.
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T. Ryan Gregory
2 years
"Smiles are back!" is such a silly slogan for the removal of masks. Viruses have neither emotions nor mouths and therefore are incapable of smiling.
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@TRyanGregory
T. Ryan Gregory
1 year
With a healthy diet, regular exercise, meditation, and not smoking or drinking excessively, you can cut your risk of developing long COVID to zero if you also don't get infected with COVID.
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@TRyanGregory
T. Ryan Gregory
3 months
Dear media, Please stop normalizing viral, bacterial, and fungal infections. Please stop normalizing working or attending school while sick. Please stop normalizing people dropping out of the workforce. Please stop normalizing the exclusion of disabled people.
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@TRyanGregory
T. Ryan Gregory
2 years
I don't understand why the go-to response is "So do we just lock down forever then?". No. But how about we don't lift mask mandates in schools right now? How about we don't stop testing? How about we fill the major gaps in vaccination (kids <5, boosters, global equity)?
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@TRyanGregory
T. Ryan Gregory
2 years
Dear trolls, anti-vaxxers, and COVID minimizers: let me save you the trouble and assure you that yes, I have seen the comment you're about to post. Repeatedly. You all say the same things based on the copy and paste talking points of the week. Here's the latest.🧵
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@TRyanGregory
T. Ryan Gregory
2 years
I'm old enough to remember when an E. coli outbreak in Walkerton, Ontario killed 6 people, there was an inquiry, and every community in the province got stricter water safety regulations.
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@TRyanGregory
T. Ryan Gregory
2 years
It's fascinating how bad COVID denialists are at math. "99.7% survival rate!!" is 1 million dead Americans (assuming everyone gets it only once). That's more COVID deaths in a few years than all American combat deaths in every war since 1775 combined. It has already happened.
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T. Ryan Gregory
11 months
Name another virus that infects people repeatedly, as often as every few months, at any time of year, with increasingly well recognized long-term impacts. And yet, so many experts are working hard to convince us that this is just the way it is.
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@TRyanGregory
T. Ryan Gregory
1 year
Out of curiosity, what *would* a pandemic that *is* a cause for concern (aka "alarmism", "fearmongering") look like to minimizers?
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T. Ryan Gregory
1 year
So many outbreaks of MINC* right now. * Mystery illness (not COVID!).
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@TRyanGregory
T. Ryan Gregory
2 years
It's pretty clear to me that many people still want information about the pandemic, that this is becoming harder to find (especially outside Twitterworld), and that scientists and citizen scientists who are making it available and accessible are doing something very important.
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