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Tracy Casavant Oh, BASc (Chml), MES Profile picture
@OhCasavant
Jan 24, 2023 • 4 tweets • 3 min read • Read on X
As of today, @WorkSafeBC has allowed 15,027 #LongCovid claims. FIFTEEN THOUSAND.

This excludes more than 2,000 disallowed claims, and, of course, thousands of Long COVID cases, including in children, not linkable to workplace infection.

#bced #bcpoli Image
The Healthcare & Social Services and Education sectors are by far responsible for most of the claims.

Guess what? There is no way in hell workers are getting infected in healthcare & education workplaces, but the public- inc babies & kids, seniors, immunocompromised - are not 🤬 Image
Building eng'g controls, integrated w/ source control & PPE (i.e., masks!), would make workplaces more safe & reduce worker exposure to an airborne, RG3 biopathogen. Yet, despite being reg'd as Engineering Firm, no PEng worked on Worksafe COVID safety!

Image descriptions:

Tweet 1: Bar chart monthly Long COVID claims

Tweet 2: Screenshot of first few rows of table, claims per industry, showing healthcare & education as top 2.

Source: worksafebc.com/en/covid-19/cl…

Tweet 3: Screenshot of Worksafe letter confirming no PEng involved

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More from @OhCasavant

Tracy Casavant Oh, BASc (Chml), MES Profile picture
Sep 26
1/ Well, some #bced absence rate data was sent my way, and, even with some rough crunching, holy 💩!

❌hybrid immunity
❌schools are safe
❌kids were always this sick

Here's total fall (Sep-Dec 2022) absence rates compared to 2019. Image
2/ Let's look again. Remember, this is AFTER seroprevalence showed all the kids were infected with COVID. And AFTER the huge Omicron 1 wave that peaked early Jan 2022.

"We aren't seeing..." my 🫏.

Bonnie Henry, Adrian Dix, Rachna Singh knew how sick kids were.

#bced #bcpoli Image
3/ How many teachers off sick, how many parents off sick and/or caring for sick kids, how many grandparents sick, how many hospital visits correspond to 20% of #bced students absent from school?!

(Again - this is just Sep to Dec comparison. Jan probably worse. Data pending.) Image
Read 11 tweets
Tracy Casavant Oh, BASc (Chml), MES Profile picture
Sep 5
1/ DYK that under the BC Workers' Compensation Act (under which the BC Occupational Health & Safety Reg falls), government workplaces like hospitals or schools are NOT EXEMPT from @WorkSafeBC regulations?

Workers Compensation Act ()
gov.bc.ca
bclaws.gov.bc.ca/civix/document…
Image
2/ DYK that @WorksafeBC is hard-wired in legislation to require an Engineering Firm Permit to Practice, and so is bound to follow @EngGeoBC Code of Ethics:

3/ DYK that in those #bcpoli workplaces that @WorkSafeBC is legally bound to protect & to hold their health & safety paramount by @EngGeoBC Code of Ethics, that THOUSANDS of healthcare & education workers were injured via infection w/RG3 biological agent

worksafebc.com/en/covid-19/cl…
Image
Read 15 tweets
Tracy Casavant Oh, BASc (Chml), MES Profile picture
Sep 3
1/ NEW! Guidance for HVAC Systems in BC Schools
Aug 9, 2024


Actually references @ashraenews 241 🧐

#bced #bcpoli #COVIDisAirborne www2.gov.bc.ca/assets/gov/edu…
Image
2/ 2.1.2.3 ASHRAE Standard 241-2023 “Control of Infectious Aerosols”. ...requirements of how ventilation systems will need to operate during any future “Infection Risk Management Mode” (“IRMM”)". As @joeyfox85 noted, it should be ALWAYS: itsairborne.com/ashrae-241-alw…
2.1.2.3 ASHRAE Standard 241-2023 “Control of Infectious Aerosols”. This is a new standard, issued in 2023, with requirements of how ventilation systems will need to operate during any future “Infection Risk Management Mode” (“IRMM”), although the standard indicates it, in itself does not define when IRMM is initiated. Page 8 of 24 It is assumed one or more of public health authorities or other regulatory bodies will determine an appropriate time when IRMM is required. An example would be another occurrence of a public health emergency similar to the SARS-CoV-2 pandemic.
3/ We should be demanding Building Readiness Plans from each district for each school. And, of course, @joeyfox85 is ahead of the curve: itsairborne.com/transparency-b…
Read 19 tweets
Tracy Casavant Oh, BASc (Chml), MES Profile picture
May 29
1/ For years (oh, god, it has been years) every request for scientifically & ethically sound COVID action has been met with denial and "We follow Bonnie Henry."

Now, I was taught that even the Queen herself (now King) could not direct a P.Eng to abandon ethics.

So ...

🧵
2/ @PHSAofBC runs @CDCofBC. BC CDC guidance is ref'd everywhere. So, I asked CEO.

"...help me to understand the legal roles and responsibilities for healthcare PPE decisions in BC? It's unclear when one considers PHO, PHSA itself, BCCDC...PicNet, and Worksafe BC." Dear Dr Byres: Hospital workers in patient contact roles are not currently mandated to wear N95 respirators, the appropriate PPE for a bioaerosol hazard such as COVID. The relevant national standard (CAN/CSA-Z94.4-18) requires N95 respirators be issued to, and worn by, all workers in healthcare environments where COVID may be present. Can you please help me to understand the legal roles and responsibilities for healthcare PPE decisions in BC? It's unclear when one considers PHO, PHSA itself, BCCDC (which is only a program of PHSA, not a separate legal entity) each health authority (which do...
3/
"..direction on Infection Prevention Control... incl COVID-19, is informed by Office of PHO and set by Ministry of Health...B.C. health authorities are equally accountable to Ministry of Health..."

[Hmmm. But @adriandix says he defers to Bonnie, not other way around] Thank you for reaching out. Within the province of British Columbia, direction on Infection Prevention Control Measures for viral respiratory illnesses, including COVID-19, is informed by the Office of Provincial Health Officer and set by the Ministry of Health. This direction is communicated to all public sector health organizations – including PHSA and the regional health authorities – via written policy communiqués, which PHSA makes publicly available on the BCCDC website. The most current version of the direction in question is available here<http://www.bccdc.ca/Health-Professionals-Sit...
Read 23 tweets
Tracy Casavant Oh, BASc (Chml), MES Profile picture
May 8
1/ Is this sufficient evidence of willful negligence? Were healthcare workers in BC, across Canada, around the world?

A chronological walk through some evidence.

Feb 2020
Unions request airborne protection.
@govcanhealth & IPAC /ID gang say not needed.


Image
2/ Mar 2020.

Health Services Association of BC union (@hsabc) presents report from
Dr. John H. Murphy
BSc MHSc MBA PhD ROH CIH (🔥)
Principal - REA Group
Adjunct Professor - Occupational & Environmental Health, University of Toronto DLSPH

hsabc.org/sites/default/…
The first page of the linked report, showing the date as Mar 19, 2020. It was addressed to President of HSABC.
3/ The Mar 2020 Murphy report is very detailed. Dr Murphy 'knows his stuff' re: aerosol transmission and the implications for HCW and patient safety, even this early in the pandemic.

It's a great read:


Dr Henry said no to @hsabc request. hsabc.org/sites/default/…
First two paragraphs from the linked report from the section titled The "Controversy" Over Aerosol Transmission
Read 21 tweets
Tracy Casavant Oh, BASc (Chml), MES Profile picture
Apr 7
🧵 Is there hybrid immunity for measles like for COVID? If so, should that be a public health goal?

Answer from Dr Mansour Haeryfur, President, Canadian Society for Immunology

*Replying in a personal capacity, not on behalf of CSI or UWO From: Mansour Haeryfar <mansour.haeryfar@schulich.uwo.c a> Sent: Saturday, March 9, 2024 7:09:20 AM To: tracycasavant@gmail.com <tracycasavant@gmail.com> Cc: Prabhjot Kaur Sohal <psohal5@uwo.ca>; Cynthia Fazio <cynthia.fazio@uwo.ca>; April Kemick <akemick@uwo.ca> Subject: RE: CSI position on Measles Hybrid Immunity This reflects my perspective and is not an articulation of official Westen University policy (or that of the Canadian Society for Immunology) on issues being addressed.
b. Measles & COVID hybrid immunity

"The goal for measles should be herd (population) immunity through vaccination, not breakthrough infections for several reasons:" Image
c. Measles & COVID hybrid immunity

"With COVID19, we had no tangible choice but to rely on hybrid immunity..." 🧐😳

"...because mRNA vaccines have not been super-effective in “preventing infections". They were great at preventing/minimizing severe illness ..." 1. With COVID19, we had no tangible choice but to rely on hybrid immunity because mRNA vaccines have not been super-effective in “preventing infections". They were great at preventing/minimizing severe illness and they did indeed make a huge difference. This is why mucosal vaccines for COVID (similar to FluMist for flu) are being evaluated within and outside Canada.
Read 17 tweets

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