Sign in

Dr. Jen Irwin

@drjenirwin.bsky.social
10.9K followers 766 following 787 posts

Professor, Health Promotion, views are my own. Evidence-informed decision-making is important. Integrity matters. N95 wearer. Dog mom. (She/her) 🇨🇦

PostsRepliesMedia
Dr. Jen Irwin @drjenirwin.bsky.social · 16/10/2026
Faculty, staff, and university students in Ontario…our team would very much appreciate your help in sharing this study info with your student networks. Thanks so much!
0126 0
Reposted by Dr. Jen Irwin
Kathryn @kathrynas.bsky.social · 15/10/2026
I am so excited to be part of the passionate research team behind this LC study. 🩵 Ears now open for comment (via short survey) 👇👇👇 Please share widely 🙏 #LongCovid #Disability #Inclusion #EduSky #AcademicSky #HigherEducation #PostSecondary #Ontario
093 0
Dr. Jen Irwin @drjenirwin.bsky.social · 15/10/2026
🎓Ontario university students wanted to participate in a research study comparing the quality of life of students WITH & WITHOUT Long COVID, and exploring the experiences & supports needed for those with Long COVID to thrive academically & personally. uwo.eu.qualtrics.com/jfe/form/SV_...
Poster advertising research study (dark purple text on light blue) with objectives to understand understanding of: (1) the quality of life of university students in Ontario with Long COVID compared to students without Long COVID; (2) the lived experiences of students with Long COVID; and (3) what students with Long COVID perceive as needed to support their well-being and academic success. To participate you must be enrolled full- or part-time at an Ontario University (undergraduate, graduate, professional degree), be able to read and write in English, and have access to an internet-connected device. For more information contact Varsha Vasudevan at vvasude@uwo.ca or Dr. Jennifer Irwin at jenirwin@uwo.ca
03119 0
Dr. Jen Irwin @drjenirwin.bsky.social · 05/10/2026
This, this, and more this! 👇
0345 0
Dr. Jen Irwin @drjenirwin.bsky.social · 04/10/2026
While not downplaying the potential negative impacts of this report, how about we choose to deal with the current biohazard that’s been circulating for the last 7 years, damaging brains, hearts, lungs, etc., etc.?
2293 0
Dr. Jen Irwin @drjenirwin.bsky.social · 04/10/2026
Paco nails it 👇 “What have you read that makes you so confident that it won’t happen to you?”
16612 0
Dr. Jen Irwin @drjenirwin.bsky.social · 02/10/2026
Ya no. Although I imagine we’ll see some headline trying to gaslight the public into thinking it’s a great thing for…honestly, I can’t even imagine the spin.
130 0
Dr. Jen Irwin @drjenirwin.bsky.social · 02/10/2026
“Covid fatigue linked to reduced brain blood flow” Published Sept 30, 2026 theconversation.com/covid-fatigu...
theconversation.com
Covid fatigue linked to reduced brain blood flow
Everyday activities can require enormous effort for people living with post-COVID fatigue. This study examines the brain mechanisms that may contribute to fatigue.
1278 0
Dr. Jen Irwin @drjenirwin.bsky.social · 01/10/2026
‘A federal appeals court handed disabled employees the clearest weapon they’ve had in years. On Aug. 18, the US Court of Appeals …ruled that an employer can’t simply declare in-person work “essential” — it must prove it, in front of a jury, with real evidence.’ news.bloomberglaw.com/legal-exchan...
news.bloomberglaw.com
Employers With Blanket Return-to-Office Policies Risk Litigation
Opinion: A recent Third Circuit decision exposes the flimsy justification behind nearly every blanket return-to-office mandate issued since the Covid-19 pandemic ended, and it should terrify any emplo...
0287 0
Dr. Jen Irwin @drjenirwin.bsky.social · 26/09/2026
Will check those out - thanks!
011 0
Dr. Jen Irwin @drjenirwin.bsky.social · 26/09/2026
Watched one with him last night - so funny!
000 0
Dr. Jen Irwin @drjenirwin.bsky.social · 26/09/2026
If you have access to it, the British panel show called, “Would I Lie to You” just might be the laugh you didn’t know you needed…it certainly has been for me!
241 0
Reposted by Dr. Jen Irwin
Elizabeth Jacobs, PhD @elizabethjacobs.bsky.social · 18/09/2026
Two people visiting Cincinnati from out of state went to the ED at Children’s Hospital and spent 4 hours there. They were sick with measles. Those who were exposed have been notified. This is been happening repeatedly throughout the U.S. And is why vaccine choices affect everyone.
wlwt.com
Measles exposure reported at Cincinnati Children's Hospital emergency department
The Cincinnati Health Department said it was notified of a measles exposure at the Cincinnati Children’s Emergency Department.
16331151 0
Reposted by Dr. Jen Irwin
Alberta Referendum Countdown @count2abreferendum.bsky.social · 20/09/2026
‼️Only 3️⃣0️⃣ days left in the Alberta Referendum‼️ If you have questions 🤔about the referendum, ask them at Alberta’s Voice Town Hall on Sept 21. Register here: albertasvoice.ca/live YOU have the power to send your message! VOTE to remain in 🇨🇦 Canada 🇨🇦 & 🙅NO🙅to the other nine questions. #ABpoli #ABleg
01410 0
Reposted by Dr. Jen Irwin
Mark Ungrin @mark-ungrin.bsky.social · 20/09/2026
CTV news coverage of the errors in health policy and guidance that leave the public unprotected from aerosol disease transmission and long COVID (with @drdavidkeegan.bsky.social and Kerri Bowser) is up. Great to see so much interest! Below is the UK inquiry cited: #medsky #scisky #cdnpoli #polisky
youtu.be
COVID health policy still outdated: researchers
YouTube video by CTV News
812067 0
Dr. Jen Irwin @drjenirwin.bsky.social · 19/09/2026
Thank you, @drdavidkeegan.bsky.social and @mark-ungrin.bsky.social !!
03113 0
Dr. Jen Irwin @drjenirwin.bsky.social · 19/09/2026
“‘Outdated’ health policies surrounding Covid still pose a danger today, says U of C researcher” Sept 18, 2026 @mark-ungrin.bsky.social 👏 www.ctvnews.ca/calgary/arti...
ctvnews.ca
‘Outdated’ health policies surrounding Covid still pose a danger today, says U of C researcher
University of Calgary professor Mark Ungrin has dedicated years of research highlighting what he believes is of significant concern to all Canadians’ health.
210750 0
Reposted by Dr. Jen Irwin
Jessica Ellis @baddestmamajama.bsky.social · 18/09/2026
People will cut out artificial food dyes, spend hours at the gym, drink vitamin infused water…and then go to the airport and rawdog breathing in an airborne pathogen that can disable you permanenty and is basically guaranteed to be there.
10419162 0
Dr. Jen Irwin @drjenirwin.bsky.social · 18/09/2026
Study cited in article above: journals.plos.org/globalpublic...
journals.plos.org
Multimodal genomic surveillance for respiratory pathogens at four U.S. international airports: A comparison of air, wastewater, clinical, and national surveillance data
Early detection of outbreaks and emerging pathogens is critical for public health and global biosecurity. Airports, as major international travel hubs with dense, enclosed populations, are high-risk s...
0223 0
Dr. Jen Irwin @drjenirwin.bsky.social · 18/09/2026
“Air sampling at four US airports in 2023 and 2024 detected SARS-CoV-2, the virus that causes COVID-19, in over 98% of samples and influenza A in over 17%, according to a study published in PLOS Global Public Health” www.cidrap.umn.edu/covid-19/air...
cidrap.umn.edu
Airport air sampling captures COVID, influenza viruses
Researchers say air monitoring complements wastewater testing in detecting respiratory pathogens from diverse populations, including asymptomatic or pre-symptomatic people.
513252 0
Dr. Jen Irwin @drjenirwin.bsky.social · 17/09/2026
Why is everyone sicker these days? ‘Relative to adults reporting no SARS-CoV-2 infections, those reporting two or more had significantly greater odds of being diagnosed with a new condition’ Gov of Canada, Sept 2026 www.canada.ca/en/public-he...
canada.ca
Associations between self-reported SARS-CoV-2 infections and the diagnosis of new health conditions - Canada.ca
Exploratory analyses examining associations between SARS-CoV-2 infections and newly diagnosed health conditions
010551 0
Reposted by Dr. Jen Irwin
ryan cooper @ryanlcooper.com · 16/09/2026
study: updated Covid vaccines provide a large reduction in the risk of infection, severe illness, and hospitalization, particularly for pregnant women and young children jamanetwork.com/journals/jam...
jamanetwork.com
COVID-19 Vaccine Effectiveness and Safety for the 2026-2027 Respiratory Season
This Special Communication aims to identify and summarize the most recently published evidence evaluating the effectiveness and safety of US-licensed COVID-19 vaccines and report on the epidemiology o...
4287100 0
Dr. Jen Irwin @drjenirwin.bsky.social · 16/09/2026
@safetyinnumbers.bsky.social is bang on regarding their assessment of the situation👇
0103 0
Reposted by Dr. Jen Irwin
Safety In Numbers @safetyinnumbers.bsky.social · 16/09/2026
No doubt this opinion will make me extremely popular, but... Maybe we were wrong to treat respiratory diseases as trivial annoyances to be ignored, rather than rigorously prevented, especially among children. Not just #COVID - post-viral conditions are underappreciated for many diseases.
0246 0
Dr. Jen Irwin @drjenirwin.bsky.social · 16/09/2026
To all claiming to value kids while not masking b/c we didn’t do it regularly before 2020, when we know better we should do better. ‘post-acute symptom prev (~21 - 24%) comparable across the 3 viruses; symptom profiles were strikingly virus-specific & age-dependent.’ www.ovid.com/jnls/md-jour...
ovid.com
Post-acute symptom persistence following... : Medicine
Persistent symptoms following acute viral respiratory infections are increasingly recognized in children. While post-acute sequelae of severe acute...
0399 0
Dr. Jen Irwin @drjenirwin.bsky.social · 16/09/2026
Post-acute symptom prevalence: RSV: 24.0%; resp & feeding diff in infants SARS-CoV-2: 22.0%; neurocog & systemic in school-aged kids Influenza: 21.2%; systemic What would help to prevent all post-viral suffering among kids regardless of virus type = 😷 + 💉+ 🪟💨 www.ovid.com/jnls/md-jour...
ovid.com
Post-acute symptom persistence following... : Medicine
Persistent symptoms following acute viral respiratory infections are increasingly recognized in children. While post-acute sequelae of severe acute...
0226 0
Reposted by Dr. Jen Irwin
CJ is..... ⚾⚕️😷 @cjhajer.bsky.social · 15/09/2026
So, at tonight's Blue Jays game, there could be as many as ~3 people PER SECTION (seats) actively spreading SARSCoV2. Quite probably more. And transmission, due to crowding and yelling, will be astronomically increased. I'll be wearing my respirator because #MasksWork and it's #StillAPandemic.
Blue Jays fan with white panel cap and blue jersey with 3M Aura respirator and SIP valve. Behind is the jumbotron and some of the roof and field of the Rogers Centre.
2388 0
Reposted by Dr. Jen Irwin
The Vertlartnic @thev.bsky.social · 15/09/2026
Why Are So Many Young Women Being Diagnosed With Chronic Health Conditions, Apart From The Obvious Reason
A young woman with chronic health conditions
Headline:
Why Are So Many Young Women Being Diagnosed With Chronic Health Conditions, Apart From The Obvious Reason
Story by Mal Evolent and Pippy Notnice

Photo from Adobe
517543 0
Reposted by Dr. Jen Irwin
Miranda Yaver @mirandayaver.bsky.social · 15/09/2026
Yet another measles death here in PA. That's two in 4 or 5 days, and this one was an 18 year-old. And of course, unvaccinated. There is no limit to my contempt toward those who continue to undermine vaccine confidence in the face of these avoidable tragedies. www.inquirer.com/health/fourt...
inquirer.com
Pennsylvania health officials confirm two new measles-associated deaths, bringing total to four as state outbreak grows
The state has now reported four measles-related deaths amid a growing outbreak that has sickened nearly 700 people this year.
38835 0
Dr. Jen Irwin @drjenirwin.bsky.social · 15/09/2026
Thank you for making the effort to bring reality to the forefront…it can certainly be exhausting and it’s important.
020 0
Dr. Jen Irwin @drjenirwin.bsky.social · 15/09/2026
Are you a teacher, professor, student? How many people do you come across in a day? In Canada, 1 of every 158 has COVID, right now. During COVID = Now.
23210 0
Reposted by Dr. Jen Irwin
Tara Moriarty @moriartylab.bsky.social · 15/09/2026
Canadian COVID Forecast Sep 12 - Sep 25, 2026 CANADA MODERATE [no change] About 1 of every 158 people is infected. Compared to lowest point of pandemic in Canada: -Infections: 3.9 x higher -Long COVID: 2.9 x higher -Hospitalizations: 4.2 x higher -Deaths: 3.9 x higher
This image describes the Canadian COVID Forecast for the fourteen-day period between Sep 12 - Sep 25, 2026, which is produced by COVID-19 Resources Canada. Canada’s COVID Forecast outlook is MODERATE [no change] with a COVID INDEX SCORE of 4.0

About 1 of every 158 people is infected.

Estimated infections this week: 151,700-309,800
What these numbers mean: MODERATE 1-5, HIGH 5-10, VERY HIGH 10-15, SEVERE >15 COMPARED TO THE LOWEST POINT IN THE COVID PANDEMIC IN CANADA
How much higher are key indicators compared to the lowest point in the COVID pandemic in Canada?
Waste water, infections: MODERATE; 3.9X higher
Long COVID: MODERATE; 2.9X higher
Hospitalizations: MODERATE; 4.2X higher
Deaths: MODERATE; 3.9X higher
HOW TO HELP:
EVERYONE:
UPDATE vaccines every 6 months
WEAR N95-type masks

Who is HIGH RISK?
People 60 and older, babies < 1 year, pregnant
ALL AGES: immunocompromised OR medically at-risk OR no vaccine or infection in the last 6 months

Recommendations are based on the COVID-19 Risk Index from the Peterborough ON Public Health Unit
COVID-19 Resources Canada is a grassroots organization of volunteer scientists supporting Canadian COVID responses. Sources, data and methods for the COVID Index are available at www.Covid19Resources.ca
612669 0
Reposted by Dr. Jen Irwin
ImmunizeCanada @immunizecanada.bsky.social · 14/09/2026
It’s #MythbustingMonday! Let’s tackle some misinformation. immunize.ca/sites/default/f... #VaccinesWork #VaccinesSaveLives #GetImmunized
032 0
Dr. Jen Irwin @drjenirwin.bsky.social · 13/09/2026
I loved it when the majority of the population understood (and cared) that getting vaccinated was a gift to ourselves and to our community members. The platform given to anti-vaxxers’ opinion-based evidence-making is infuriating…and clearly deadly.
821052 0
Dr. Jen Irwin @drjenirwin.bsky.social · 10/09/2026
Vaccines are certainly an important layer of protection.
030 0
Dr. Jen Irwin @drjenirwin.bsky.social · 10/09/2026
You’re most welcome
000 0
Dr. Jen Irwin @drjenirwin.bsky.social · 10/09/2026
It’s looking at long covid from Covid infection (not about the vaccine)
170 0
Dr. Jen Irwin @drjenirwin.bsky.social · 10/09/2026
I’m not sure I understand…I found only one place where the author used ‘cause’ while quoting the researcher re “…implications for the development of effective vaccines and therapies to prevent an acute infection before it can embed itself in people and cause long-term disease.” -?
100 0
Dr. Jen Irwin @drjenirwin.bsky.social · 09/09/2026
Article cited in the above piece: pubmed.ncbi.nlm.nih.gov/41494242/
pubmed.ncbi.nlm.nih.gov
Increased phosphorylated tau (pTau-181) is associated with neurological post-acute sequelae of coronavirus disease in essential workers: a prospective cohort study before and after COVID-19 onset - PubMed
This study was supported in part by funding from the Centers for Disease Control and Prevention (CDC/NIOSH CDC-75D30122c15522) and the National Institutes of Health (NIH/NIA AG049953).
0222 0
Dr. Jen Irwin @drjenirwin.bsky.social · 09/09/2026
How about we stop playing stupid games and winning stupid prizes? respiratory-therapy.com/disorders-di...
respiratory-therapy.com
Alzheimer's Protein Detected in Long COVID Patients
Patients with neurocognitive difficulties post COVID-19 infection had elevated levels of a protein found in many Alzheimer’s patients.
17559223 0
Dr. Jen Irwin @drjenirwin.bsky.social · 09/09/2026
How about doing COVID next?
3517 0
Reposted by Dr. Jen Irwin
Andrew Weinstein @andrewjweinstein.com · 09/09/2026
You know who actually did show up at Ground Zero? Canadian emergency rescue crews.
390309727716 0
Reposted by Dr. Jen Irwin
Ontario School Safety @onschoolsafety.bsky.social · 07/09/2026
What happens outside impacts what happens inside classrooms and on the school bus. On International Day for Clean Air for blue skies, let's talk about indoor air. It can be far more polluted than outdoor air and speed up the transmission of airborne viruses. #OntEd #IAQ www.cleanairblueskies.org
cleanairblueskies.org
International Day of Clean Air for blue skies
7 September is the International Day of Clean Air for blue skies as designated by the UN General Assembly. Visit the official site for more.
195 0
Reposted by Dr. Jen Irwin
🇨🇦Joe Vipond🇨🇦 @jvipondmd.bsky.social · 07/09/2026
I find it ironic that the billionaires are chasing longevity while undermining our basic life support systems.
313135 0
Dr. Jen Irwin @drjenirwin.bsky.social · 05/09/2026
“From HIV to SARS-CoV-2 associated neurological disorder (“HAND” to “SAND”): Viral infection as a “time-bomb“ for the aging brain“ www.sciencedirect.com/science/arti...
sciencedirect.com
From HIV to SARS-CoV-2 associated neurological disorder (“HAND” to “SAND”): Viral infection as a “time-bomb“ for the aging brain
In 2020, a novel Coronavirus, Severe Acute Respiratory Syndrome-Covid-2 (SARS-CoV-2), spread globally to provoke a pandemic that infected over 750 mil…
01911 0
Dr. Jen Irwin @drjenirwin.bsky.social · 04/09/2026
Article cited above: www.cell.com/immunity/abs...
cell.com
A distinct effector B cell population drives autoantibody production in SARS-CoV-2 infection
Autoantibodies (autoAbs) are linked to mortality and Long COVID, yet their cellular origins remain unclear. Yuan et al. identify a distinct B cell population (DN2 cells) as a key source of autoAbs dur...
080 0
Dr. Jen Irwin @drjenirwin.bsky.social · 04/09/2026
“COVID-19 may trigger the same immune pathway as lupus” September 3, 2026 www.cidrap.umn.edu/covid-19/cov...
cidrap.umn.edu
COVID-19 may trigger the same immune pathway as lupus
1344 0
Dr. Jen Irwin @drjenirwin.bsky.social · 03/09/2026
When do infections lead to long COVID? Scientists close in on triggers and treatments for post-viral syndromes www.nature.com/articles/d41... Sept 2, 2026
nature.com
When do infections lead to long COVID? Scientists close in on triggers and treatments for post-viral syndromes
Hundreds of millions of people have long-term conditions as a result of an infection. Researchers are working out how to help them.
0256 0
Dr. Jen Irwin @drjenirwin.bsky.social · 01/09/2026
‘Long COVID was associated w higher risk of most CRP outcomes across all ages regardless of sex. Relative risks were disproportionately higher in younger adults, esp in young women for cardiovas & renal outcomes & in young men for pulmonary outcomes’ Aug 20 2026 www.ahajournals.org/doi/10.1161/...
ahajournals.org
Cardiovascular, Renal, and Pulmonary Risks of Long COVID: A Retrospective Cohort Study Stratified by Age and Sex | Journal of the American Heart Association
0174 0
Reposted by Dr. Jen Irwin
Conor 📎💙 #BlueCrew #ResistanceBlue #VoteBlue 💙🌊 @conormcl2026.bsky.social · 30/08/2026
#RobinWilliams #filmsky #moviesky 💔🔄 #BeKind #BeKindAlways ❤️
02847609 0