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Dr. Lyne Filiatrault Profile picture
Dr. Lyne Filiatrault
@DrFiliatrault
Former emergency physician, Vancouver Canadian Aerosol Transmission Coalition Safe Air, Safe Schools/ Air Sain, Ecoles Saines @DrFiliatrault@zeroes.ca
Nov 13 • 5 tweets • 2 min read
With an absent CDC and mismatched 'subclade K' flu strain, experts face upcoming season with uncertainty cidrap.umn.edu/influenza-vacc…
@mrmickme2 @RajlabN @nucleocpsoid @richardhirschs1 utppublishing.com/doi/10.3138/ja…OPEN ACCESS Research Article 31 October 2025 Emergence of seasonal influenza A(H3N2) variants with immune escape potential warrants enhanced molecular and epidemiological surveillance for the 2025–2026 season Authors: Suzana Sabaiduc, Samantha E Kaweski, Lea Separovic, Ruimin Gao, Charlene Ranadheera, Nathalie Bastien, and Danuta M Skowronski Danuta.Skowronski@bccdc.caAUTHOR INFORMATION AND AFFILIATIONS Publication: Journal of the Association of Medical Microbiology and Infectious Disease Canada Advance Access https://doi.org/10.3138/jammi-2025-0025
Aug 27 • 6 tweets • 3 min read
This is big!
Please share widely.
@brish_ti @moirawyton @PennyDaflos @kul_akshay_ @CBCNews @nicireland_news @CdnPressNews @TheTyee @picardonhealth @globeandmail @juliemaclellan
globenewswire.com/news-release/2…https://www.globenewswire.com/news-release/2025/08/25/3138781/0/en/Protecting-healthcare-workers-protects-us-all.html Protecting healthcare workers protects us all: Canadian coalition gets overwhelming support backing stronger protections for healthcare workers in updated CSA respirator standard August 25, 2025 14:04 ET | Source: Canadian Aerosol Transmission Coalition Share TORONTO, Aug. 25, 2025 (GLOBE NEWSWIRE) -- Canadian healthcare workers deserve the same on-the-job protections as workers in every other sector — and new national standards may finally deliver them. “These revisions to the CSA standard will strengthen protection for healthcare workers as well as patients,” said @DickZoutman, retired ID physician & professor @queensu. “It’s an important contribution to Canada’s overall preparedness for future pandemics.” More than 1,700 physicians, nurses, scientists, engineers, occupational health specialists, civil society groups and individuals representing the immunocompromised, people living with long COVID and those who care about public health, have signed a statement supporting proposed updates to the Canadian Standards Association (CSA) Z94.4 worker respiratory protection standard. Key support also came from the Canadian Labour Congress and its individual and provincial affiliates (representing more than three million workers and most of the country’s unionized healthcare workers, including the Can...
Apr 8 • 11 tweets • 5 min read
Looking back at hospital admissions with Viral Resp. Infections to understand: "sick all the time"
Weekly admissions to 78 🇨🇦hospitals in 10 provinces & 1 territory participating in VRI Nosocomial Infection Surveillance Program
All Ages up to 29-03-2025
health-infobase.canada.ca/cnisp/viral-re…Graph of weekly incidence of patients hospitalized with Viral Respiratory Infection per 1,000 patient admissions for All ages. Shows COVID-19 admissions in Red, RSV admissions in Blue and Influenza A admissions in Yellow. Influenza A admissions have peaked above last years admissions and are on the way down. Influenza B admissions, light Blue is rising but at a very low level still. Data is up to and including the week of 23-03-2025. Looking at the same data for Adults only.
Spring-Summer-Fall #Covid
Influenza season was late with admissions peaking higher than last year. Graph of weekly incidence of patients hospitalized with Viral Respiratory Infection per 1,000 patient admissions for Adults 18 years and over. Shows COVID-19 admissions in Red, RSV admissions in Blue and Influenza A admissions in Yellow. Influenza A admissions have peaked above last years admissions and are on the way down. Influenza B admissions, light Blue is rising but at a very low level still. Data is up to and including the week of 23-03-2025.
Mar 16 • 22 tweets • 7 min read
Attended #LongCovidAwarenessDay2025 at Vancouver Art Gallery.
Did not see Dr. Bonnie Henry nor other public health leaders
Did not see anyone from @CDCofBC
Did not see BC premier @Dave_Eby
Did not see BC Health Minister @Josie_Osborne nor any other political parties.
#bcpoli Slide title: International Long Covid Awareness Day 5 Years of Long Covid Cure Long Covid Now Saturday March 15th 2025 Raise Awareness with Us Toronto-Quebec City- Vancouver Luckily public came to show support for 3.5 million Canadians with Long Covid. (June 2023 Stats Can)
3.5 million is not the true number. No one is counting. That's intentional, part of the "what you don't know, don't see, can't hurt you."
Except #LongCovid can & it will hurt you 2 hearts made of the pillowcases of people with Long Covid with their stories written on. Text between the two hearts reads, Let's make long Covid so visible it can't be ignored.
Dec 20, 2024 • 11 tweets • 5 min read
Not just in Alberta, also happening in BC. RSV tests positivity rate in Canada sits at 9.5%
for the week ending Dec. 14, 2024
health-infobase.canada.ca/respiratory-vi…Geographic trends across Canada in percentage of tests positive for RSV for week ending December 14, 2024. BC and AB are neck and neck at 10%, Quebec leads at 12.6%. The average test positivity rate now for RSV in Canada is 9.5%
Sep 27, 2024 • 5 tweets • 3 min read
Seems like the BC CDC is resuming weekly reporting.
Several changes have been introduced to their various dashboards.
bccdc.ca/health-profess… Virus in circulation in BC now in the adult population.
These do not represent number of cases.
Data up to Sept. 21, 2024
bccdc.shinyapps.io/respiratory_pa…
Number of positive samples by virus in BC: All ages. Clearly shows Covid is most prevalent and positive samples are rising. Then comes Entero/Rhinovirus, positive samples are also trending up and in 3rd place is influenza. Data is up to September 21, 2024.
Sep 10, 2024 • 8 tweets • 3 min read
Today I listened to the presentation of this RECOVER Study published in JAMA:
Recording will be available in ~2 weeks:

A few slides stood out for me. jamanetwork.com/journals/jama/…
recovercovid.org/r3-seminar-ser…
Slide from recoverCOVID.org Characterizing Long COVID in Children and Adolescents: First Main Analysis of the RECOVER-Pediatrics Observational Cohort Study. First off, we can debate the prevalence but one thing is clear even at the lower end, LC in children & adolescents is not a rare disease. Prevalence of Long COVID in children • Early reports suggest that 4 to 58% of infected children have persistent symptoms • More recent meta-analyses • High variability in terms of prevalence (2 to 70%) Pellegrino R. Eur J Pediatr. 2022 • Prevalence of Long COVID was 25.2% Lopez-Leon S et al. Sci Rep. 2022 • Prevalence of pediatric Long COVID at 90 days post infection to be 2% to 5%. Funk et al, JAMA Open Network, 2022 Even at the low end 2 to 10%: 1.4 million children in the United States • If 10% of 65 million with positive antibodies: >6 million A disease considered rare when it affects <...
Mar 7, 2024 • 13 tweets • 4 min read
By refusing to accept that SARS-CoV-2 spreads through aerosols, all 🇨🇦public health officials put children & educators [and their families & communities] at risk of repeated COVID infections, and now measles in schools.
What's next, TB? By doubling down on droplet spread of SARS2, 🇨🇦public health officials have prevented improvements to schools' indoor air quality, that would have also helped against measles.
Instead in 2024, in 🇨🇦, the public is told by public health to wash their hands. It's a disgrace! BC CDC poster on Hand Hygiene to protect against Coronavirus COVID-19. Photographed recently in washroom at dental office in BC.
Dec 12, 2023 • 13 tweets • 5 min read
Alerte: Mésinformation!
@LP_LaPresseici.radio-canada.ca/info/videos/1-… Dr. KW : « la pandémie est définitivement finie »
Vrai ou Faux?
Faux! Voir le graphique ci-dessous.
Source: inspq.qc.ca/covid-19/donne…
Image
Jul 6, 2023 • 10 tweets • 3 min read
Attended this talk yesterday.
@BlairWilliams26 presentation particularly resonated
with me. From 19:15 to 28:56
It offers a path to possibly get out of this unsustainable pandemic situation.
Source @BlairWilliams26
Shows the disconnect of what acceptable number of Covid-deaths were for Australian & what played out.
Reminded me of last fall's survey stating British Columbians most willing in Canada to return to masking, and yet BC PHO & #bcpoli let tripledemic rip.
May 26, 2023 • 29 tweets • 6 min read
Worth dissecting /via @globeandmail theglobeandmail.com/canada/british… First off thank you to @MoriartyLab who is the only person providing early indicators for people in Canada to be able assess their risk of Covid infection in their province/territory. Canadian Covid-19 Forecast:...
May 25, 2023 • 4 tweets • 2 min read
There is no doubt that physicians who sign an open letter or speak out can face retaliation. Retaliation takes many forms: your OR time gets cut, you're called into dept head's office, hospital privileges are threatened... | Globalnews.ca globalnews.ca/news/9720440/s… What normally happens is a courageous senior physician will step up and be the face for the group, as they are at the end of their career and can walk away. Like happened here. Thank you Dr. Urbain Ip.
Jan 29, 2023 • 8 tweets • 4 min read
A good read from @shazmamithani
thestar.com/opinion/contri… via @torontostar "Every Canadian needs access to a family doctor. Governments need to step up and commit to doing what’s right for the system, instead of focusing on Band-Aid solutions."
Jan 28, 2023 • 7 tweets • 4 min read
There has been a lot of discussion on twitter about who is being and who should be interviewed by media when it comes to #Covid_19 "experts". It is easy for everyone to be biased, follow on twitter or listen to, interview those who think like us, whom we relate to. Unfortunately that can cause us to focus on single aspect of a complex problem. It can create large dark spots in our vision, and gaps in our understanding.
Dec 5, 2022 • 5 tweets • 3 min read
"We have not had a single 🇨🇦 MHO & Dr. Tam say the word "Airborne! If you misdirect policy on the underpinnings of a crisis... not being able to talk about airborne transmission for #COVID, you are going to fail! Because science underpins everything... We are failing." @jvipondmd "If the physics, biology and chemistry underpinning your policy decisions do not support your policy decisions, you're gonna fail, and we are failing."
Oct 12, 2022 • 14 tweets • 7 min read
“Focusing on Covid morbidity/mortality is bad b/c…to protect older Cdns has come at high cost to our youth” Dr. Krajden
In BC, our public health leaders have protected neither seniors nor youth. BC Public Health leaders have not protected our seniors. They have manipulated the definition of outbreaks in LTC, and left it at the discretion of the Medical Health Officer of the regional health authority, or their official designate, to even declare an outbreak.
Sep 15, 2022 • 7 tweets • 3 min read
Agree with this we cannot blame schools for high rates of #Covid among BC youth. We need to blame the BC provincial health officer. 1/
"Henry says some youth were becoming infected when they were not eligible for a vaccine" Whose job was it to buy time and keep them safe until a vaccine was available for them, 5-11 or 0-4 years old? 2/
Aug 30, 2022 • 5 tweets • 3 min read
Problem in BC, is that we are not testing and thus cannot adjust #COVID protections based on case positivity rate. True for community, schools & universities.
@CDCofBC policy: Don't test, Don't tell, Don't show.
Public assumes all's good and @CDCofBC must be doing a great job. 1/ Let's be clear, it's a choice @CDCofBC is making to NOT open up pcr testing, to NOT collect & show Rapid Tests Data. BC capacity is 20,000 pcr (MSP) per day. Last BC Covid sit. report (wk 32, Aug 7-13), showed 4,500 MSP funded pcr in a week. Untimely report received Aug.25 2/5
Aug 29, 2022 • 4 tweets • 2 min read
This is beautifully written by @nilikm healthydebate.ca/2022/08/topic/… via @HealthyDebate 1/3 It augments the Open Letter of @Protect_BC and its many allies. 2/3