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Rachel Adelson

@rka.bsky.social
142 followers 381 following 24 posts

Editor and writer; science & health literacy.

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Reposted by Rachel Adelson
Canadian Paintings @canadianpaintings.bsky.social · 20h
Embers Nicki Ault 2022
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Reposted by Rachel Adelson
Deb Houry @drdebhoury.bsky.social · 21h
Heartbroken by Helen Branswell’s passing. I always enjoyed talking with her and reading her reporting. She sought the truth, lifted up science, and asked questions that mattered. Her loss leaves a tremendous void in journalism and public health. @statnews.com www.statnews.com/2026/10/13/h...
statnews.com
Helen Branswell, whose reporting on infectious diseases and public health drew acclaim, dies at 69
Helen Branswell, STAT's infectious disease reporter who earned the respect of experts and public health officials with her accessible, prescient dispatches, has died at age 69.
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Gregg Gonsalves @gregggonsalves.bsky.social · 13/10/2026
This is really terrible news. Helen was one of the best. Helen Branswell, whose reporting on infectious diseases and public health drew acclaim, dies at 69 www.statnews.com/2026/10/13/h... via @statnews.com
statnews.com
Helen Branswell, whose reporting on infectious diseases and public health drew acclaim, dies at 69
Helen Branswell, STAT's infectious disease reporter who earned the respect of experts and public health officials with her accessible, prescient dispatches, has died at age 69.
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Canadian Paintings @canadianpaintings.bsky.social · 11/10/2026
Autumn Foliage Tom Thomson 1916
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Emmett Macfarlane 🇨🇦 @emmettmacfarlane.com · 10/10/2026
Canada should be building up massive greenhouse capacity, relying on geothermal energy, across the country to grow our own food. Sovereignty means getting things right, and getting the hell away from reliance on the US for ALL THINGS.
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ProPublica @propublica.org · 11/10/2026
Citing the growing popularity of unpasteurized milk and the damage it can do to children, the nation’s largest professional group of pediatricians is seeking a nationwide ban on the sale and distribution of raw dairy products.
propublica.org
American Academy of Pediatrics Renews Call for Ban on Raw Milk
Citing the growing popularity of unpasteurized milk and the damage it can do to children, the nation’s largest professional group of pediatricians is seeking a nationwide ban on the sale and distribut...
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Canadian Paintings @canadianpaintings.bsky.social · 11/10/2026
You're Welcome Back Anytime Lee Munn 2022
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Bill Comeau 🇨🇦 @bill-comeau.bsky.social · 10/10/2026
Let’s be clear. Every action or lack of action that reduces the uptake of proven #vaccines this Fall is directly responsible for increased sickness, hospitalizations, and deaths in the population at large.
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Canadian Paintings @canadianpaintings.bsky.social · 10/10/2026
Tranquil Harmony XIV Monica Morrill n.d.
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Durham County Department of Public Health (DCoDPH) @durhamhealthnc.bsky.social · 08/10/2026
It's that time of year: lots of people will be sick, and many won't know what sickness it is. It's a good idea to get tested, but even if you don't know what it is, *please* stay home as much as possible, get plenty of rest to help yourself recover, and wear masks if you have to go out while sick!
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Dr. Lucky Tran @luckytran.com · 08/10/2026
This picture will always be iconic. RIP Margaret Hamilton who wrote the software that successfully guided NASA’s Apollo missions through the moon.
Margaret Hamilton with printed computer code in 1969. Credit: NASA/Alamy
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bryan newbold @bnewbold.net · 07/10/2026
ah damn, RIP Margaret Hamilton. she took safety-critical software engineering seriously, and got people to the moon and back. news.mit.edu/2026/margare...
old photos of a woman (Margaret Hamilton) standing next to a tall stack of books (printouts of Apollo space mission software source code)
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ProPublica @propublica.org · 08/10/2026
NEW: America’s largest professional group of pediatricians has renewed its call for a nationwide ban on raw dairy products, warning of the serious health risks, particularly for children, as well as pregnant and immunocompromised people.
propublica.org
American Academy of Pediatrics Renews Call for Ban on Raw Milk
Citing the growing popularity of unpasteurized milk and the damage it can do to children, the nation’s largest professional group of pediatricians is seeking a nationwide ban on the sale and distribut...
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Reposted by Rachel Adelson
CIDRAP @cidrap.bsky.social · 07/10/2026
Raw milk poses serious infection risks with no added health benefits, pediatrician group warns In a statement released this week, the organization renews its call for a ban on the sale and distribution of unpasteurized milk products. Read more: bit.ly/4rOh4dL
Milk in a vintage glass bottle in front of a wood paneled wall
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CIDRAP @cidrap.bsky.social · 07/10/2026
Vaxcyte’s 31-strain pneumococcal conjugate vaccine passes phase 3 test The company says the vaccine hit all primary end points in a phase 3 trial comparing it with two other pneumococcal conjugate vaccines. Read more: bit.ly/4j4r9B7
Older woman in white receiving a band aid from a doctor after vaccination
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Canadian Paintings @canadianpaintings.bsky.social · 07/10/2026
Rain Clouds A.J. Casson 1976
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Canadian Paintings @canadianpaintings.bsky.social · 07/10/2026
Slow and Steady Wins the Race Lee Claremont ~ Mohawk n.d.
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Matt Oliver @sameo416.bsky.social · 19/09/2026
Excellent @ctvnewscalgary.bsky.social story feature two super voices of science @drdavidkeegan.bsky.social and @mark-ungrin.bsky.social. Precaution means you use higher mitigation until you know absolutely a lower mitigation is acceptable. A lack of hazard is never assumed only proven.
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Timothy Caulfield @caulfieldtim.bsky.social · 30/09/2026
🚨 Watch for FAKE journals, FAKE conferences, FAKE societies! Exclusive: Sham scientific societies are misleading star researchers www.nature.com/articles/d41... "...a sprawling international constellation of suspicious academies and societies..."
nature.com
Exclusive: Sham scientific societies are misleading star researchers
A Nature investigation reveals a network of organizations that have been building their ranks through deceptive practices.
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Judy Stone @drjudystone.bsky.social · 06/10/2026
My latest: Surging Measles Outbreaks May Fuel Mumps And Other Infections via @forbes www.forbes.com/sites/judyst... #Measles #Mumps #RFKJr #ImmuneAmnesia @defendpublichealth.bsky.social
forbes.com
Surging Measles Outbreaks May Fuel Mumps And Other Infections
Mumps outbreaks may be fueled by two things—waning immunity and immune amnesia following measles. We are likely to see more of both as fewer people vaccinate.
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Mary Fernando M.D. 🇨🇦 @maryfernando.bsky.social · 04/10/2026
Hilarious because it’s true. #Homeopathy
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The Beaverton @thebeaverton.com · 01/10/2026
New Tim Hortons pizza made with 100% Canadian cardboard
thebeaverton.com
New Tim Hortons pizza made with 100% Canadian cardboard
OAKVILLE, ON - Heralding its new offerings as the culmination of nine years of intense laboratory research, Tim Hortons president Axel Schwan proudly announced that the franchise’s new lineup of pizza...
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Jon Douglas @atranscendedman.bsky.social · 01/10/2026
About 22,400 Quebec healthcare workers. During Omicron, a COVID booster was associated with 57% lower Long COVID risk, but protection waned to about 30% by 6 months. Vaccination lowered risk, not to zero. www.cidrap.umn.edu/vaccine-poli...
cidrap.umn.edu
Long COVID, disputing measles deaths, and newborns without RSV protection: The State of US Vaccine Policy
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Canadian Paintings @canadianpaintings.bsky.social · 01/10/2026
October Anne Savage c. 1920
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Geoffrey P Johnston😎🇨🇦🇺🇦 @geoffypjohnston.bsky.social · 30/09/2026
“They were characterized by widespread abuse and neglect, and led to as many as 6,000 deaths, mostly from malnutrition or disease.”
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Canadian Paintings @canadianpaintings.bsky.social · 30/09/2026
Study for mâtinawêwin (Sharing Food) Kent Monkman ~ Cree 2026
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CIDRAP @cidrap.bsky.social · 29/09/2026
Are you a parent or guardian feeling confused about which vaccines your child needs this fall? If you're feeling uncertain, your pediatrician can help you make a decision based on your child's specific situation. Watch this video from @unbiasedscipod.bsky.social w/ info to consider ⬇️
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🇨🇦Joe Vipond🇨🇦 @jvipondmd.bsky.social · 28/09/2026
i think what makes me sad is there were many more HCWs (and patients) hurt in HC facilities but we will never ever see a similar report on the failings associated with that. and we should. 2/2 healthydebate.ca/2026/04/topi...
healthydebate.ca
HCWs have died and been disabled. Laws should have prevented this - Healthy Debate
We must learn the lessons from the COVID-19 pandemic to prevent thousands from acquiring a preventable workplace-acquired illness.
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Mark Ungrin @mark-ungrin.bsky.social · 28/09/2026
An absolutely damning report on the unnecessary COVID deaths of workers at the Cargill plant in High River, AB, highlighting public health and infection control's mismanagement of the crisis, and failure to engage OHS or follow the precautionary principle. albertapolitics.ca/wp-content/u...
As the evidence marshalled in this report shows, the massive
outbreak associated with Cargill was by no means inevitable. It
occurred because systems designed to protect worker health and
safety failed. And they failed for a number of interrelated reasons.
OHS and AHS Did Not Adopt the
Precautionary Principle
The virus SARS-CoV-2 is spread among humans via aerosol
transmission. The period during which someone with COVID-19
can transmit the virus varies depending on factors such as the
variant and severity of illness, but transmission can occur both
before and after symptom onset. Some infected individuals never
experience illness but still spread the virus to others.
At the beginning of the pandemic, Hinshaw and many other
public health leaders believed that COVID-19 only spread via
large droplets and that asymptomatic transmission was not
occurring. As a result, AHS EPH primarily focused on physical
barriers, physical distancing, hand-washing, and surgical masks as
preventative measures at Cargill.Cargill, AHS, and OHS did not consider the possible range of
aerosol transmission of the virus in a large crowded industrial
work setting and, therefore, did not prioritize — let alone consider
— higher-level control measures such as improved ventilation, air
filtration, and N95 (or equivalent) respirators.
Surgical masks, which were made mandatory at Cargill after April
16, provided inferior protection to workers working eight hours a
day, especially for those working in close quarters with inadequate
ventilation. Sometime between the closure of the facility (April
22) and its reopening (May 4), Alberta OHS came to believe that
tight-fitting, higher-filtration respirators (N95 or equivalent
masks) were required, as demonstrated by the ministerial order
approving KN95 masks (May 3) and OHS officers’ decision to wear
N95 masks during their May 4 inspection. However, the evidence
suggests that this view was not shared by Hinshaw.
Ventilation was not identified as a potential factor in the spread
at Cargill until early May, and even then, there is no evidence that
this pathway was further investigated by AHS or OHS.
Had OHS, AHS, and Cargill adopted the precautionary principle,
which requires taking proactive measures to maximize human
safety before the science about the transmission of a new virus
is known, more aggressive control measures would have been
adopted early on. If improved ventilation, provision of N95 masks
(or cartridge respirators), and other actions had been taken earlier,
hundreds of workers may have been spared from illness.None of the evidence we reviewed showed any communication
or coordination between AHS EPH officials and Alberta OHS at
this time. In response to our freedom of information requests for
email correspondence between the manager for OHS in Calgary
and several AHS officials who were directly involved in the Cargill
response, we were informed by the Government of Alberta’s
access to information that “a thorough search […] did not yield any
records responsive to your request.”195
By April 16, the total number of known confirmed positive cases
had reached approximately 550. At this point, there had only
been one in-person inspection of the plant, that being AHS’ April
7 visit, which resulted in non-binding recommendations. And, as
mentioned, there was no epidemiological analysis of the outbreak
showing the temporal pattern of the spread within the plant and
in the community.
An internal AHS MOH update on April 17 noted that “84% of
new COVID-19 cases [in the province] are in Calgary Zone, ‘most
related to Cargill.”196 By this time, a Cargill worker and union shop
steward had been admitted to an ICU. On April 18, another worker
would need life support care in the ICU. Cargill, AHS, and OHS had
lost control of the outbreak.Echoing Cargill’s response to the union’s April 12 letter, Dreeshen
cautioned workers not to listen to “inflammatory rhetoric” and
appealed to them to instead focus on information from public
health experts:
“…On this call are Alberta’s best medical minds and
they provide Alberta’s government with the best up
to date information on a daily basis and I would just
like to encourage everyone to not get distracted by
misleading noise or inflammatory rhetoric because
any government's primary goal — our core goal — is
to keep our people safe…”
Immediately after the town hall, Dreeshen posted on his social
media: “Directly communicated with [Cargill] workers to reassure
them that their worksite is safe.”217 Internal email messages
among senior officials with the Ministry of Agriculture and
Forestry suggest there was also “a request” to share some “key
messages” about the safety of Cargill’s plant through Hinshaw’s
Twitter account.218
Hours after the town hall, Dr. Nick Etches, acting lead medical
officer of health for the Calgary Zone, wrote to colleagues
requesting assistance with an epidemiological analysis of
the outbreak:
“[Hu] just spoke with [Hinshaw] and she wants us
to answer some questions that will likely require
additional epi support. Essentially we want to
determine the proportion of the Cargill-associated
cases that are due to:
1) Workplace transmission
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Kevin Ball 🇨🇦 @stairway-to-kevin.bsky.social · 29/09/2026
COVID is still a workplace safety issue. And on the books at least, you still have the right to refuse unsafe work. Of course government & public health continue to operate as they have since COVID’s onset—as if neither is true (easier now that it’s less likely to kill you… at least not directly)
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🇨🇦Joe Vipond🇨🇦 @jvipondmd.bsky.social · 29/09/2026
can we learn from our mistakes?
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Mark Ungrin @mark-ungrin.bsky.social · 29/09/2026
A really good long read from @charlesrusnell.bsky.social on the report on how the UCP / AHS / OHS failed to protect workers at the Cargill plant, including lack of appropriate PPE, which led to unnecessary deaths.
thetyee.ca
Alberta’s Deadly Betrayal of Meat Plant Workers During COVID | The Tyee
A shocking report finds the UCP ignored evidence of high risk.
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PBS News @pbsnews.org · 27/09/2026
It doesn't have sharp teeth or claws, but the mosquito kills more people than any other animal on earth. As the climate warms, mosquito season is lasting longer, giving them more time to spread dangerous diseases. to.pbs.org/4ihm3ks
to.pbs.org
Scientists explore new ways to target mosquitoes as warming climate expands threat
It doesn't have sharp teeth or claws, but the mosquito kills more people than any other animal on earth. As the climate warms, mosquito season is lasting longer, giving them more time to spread danger...
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Canadian Paintings @canadianpaintings.bsky.social · 28/09/2026
Sunset in the Swamp Yvonne McKague Housser n.d.
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Canadian Paintings @canadianpaintings.bsky.social · 26/09/2026
Lynx Eyed Meghan Hilebrandt 2023
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My IRL friends call me Chris @christyceeck.bsky.social · 25/09/2026
Free flu and Covid-19 vaccination starts for priority groups in Ontario this Monday before being rolled out to the general public on October 26.
In a news release, the Ministry of Health said an initial supply of COVID-19 and flu vaccines will be available for high-risk and priority groups who live, work or study in Ontario starting Monday. Those individuals include:

Hospitalized patients
Hospital staff
Residents and staff in long-term care homes, retirement homes and other congregate settings
Individuals aged 65 and older
Free flu and COVID-19 shots will be available more widely to the general public starting Oct. 26 at participating pharmacies, public health units, and participating doctor and nurse practitioner offices.
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Dick Zoutman @dickzoutman.bsky.social · 25/09/2026
Wonderful lecture by Dr. King from AirClub on indoor air quality in schools presented at the UN General Assembly.
webtv.un.org
Healthy Indoor Air in Schools: Every Breath Shapes Learning
Co-sponsored by the Governments of Montenegro, France, and Eswatini this event will highlight one of the most overlooked levers in children's health and learning: the quality of the air they breathe i...
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Dorit Reiss @doritreiss.bsky.social · 25/09/2026
Trump Officials May Undo Nursing Home Mandates for Reporting Respiratory Diseases - proposed rule would remove notification requirements. www.nytimes.com/2026/09/23/b... via @nytimes.com
nytimes.com
Trump Officials May Undo Nursing Home Mandates for Reporting Covid
The agency led by Dr. Mehmet Oz is proposing an end to weekly tracking of respiratory infections at the facilities where thousands of elderly residents died in the pandemic.
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Colin Furness MISt PhD MPH @furnesscolin.bsky.social · 24/09/2026
Is COVID surging in Ontario? I think it is. Wastewater surveillance lags about 2 weeks (which yes, mostly defeats its purpose). It reads as low/moderate. But in other jurisdictions around us it's surging. Anecdotally, I see a big bump in infections among people I know, just in the last week. 1/4
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Jon Douglas @atranscendedman.bsky.social · 25/09/2026
University of Gothenburg, 1.39 million adults. A fourth vaccine dose was linked to 31% lower risk of a Long COVID diagnosis over 6 months than three doses. Protection was 38% in higher risk adults. www.thelancet.com/journals/ecl...
thelancet.com
Booster dose of COVID-19 vaccine and its effectiveness against post COVID-19 condition in individuals with pre-existing immunity: a sequential propensity score-matched cohort study
Receiving a fourth dose of COVID-19 vaccine was associated with a lower risk of being diagnosed with post COVID-19 condition compared with three doses, although the absolute risk reduction was small. ...
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🇨🇦Joe Vipond🇨🇦 @jvipondmd.bsky.social · 24/09/2026
"Narrow definitions of credible evidence, which prioritised clinical and epidemiological evidence over findings from aerosol science, delayed incorporation of knowledge on airborne transmission despite emerging interdisciplinary evidence" www.thelancet.com/journals/lan...
thelancet.com
The NUS–Lancet PRIME Commission: transforming pandemic readiness for equity
The National University of Singapore (NUS)–Lancet Pandemic Readiness through Institutions, Mobilising Communities, and Equity (PRIME) Commission redefines pandemic readiness and offers a practical blu...
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James Beeson @beesonmalaria.bsky.social · 22/09/2026
New paper shows how mRNA #vaccines against #malaria can be designed to generate multi functional antibodies against blood stages of infection @burnetinstitute.bsky.social www.frontiersin.org/journals/imm...
frontiersin.org
Frontiers | Targeting a malaria merozoite surface protein with mRNA vaccine generates multifunctional antibodies
IntroductionMalaria is a leading health problem with high disease burden and mortality rates worldwide. Currently approved vaccines target the sporozoite for...
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Canadian Paintings @canadianpaintings.bsky.social · 23/09/2026
Fall Florals Emily Kewageshig ~ Anishinaabe 2022
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Institute of Health Emergencies & Pandemics @uoftpandemics.bsky.social · 22/09/2026
🛡️ As flu season approaches, air filtration remains an important layer of protection against infectious diseases. IHEP member Jeff Siegel @engineering.utoronto.ca) explains how high-efficiency air filtration can help reduce airborne pathogens in shared indoor spaces.
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Prof Peter Hotez MD PhD DSc(hon) @peterhotezmdphd.bsky.social · 21/09/2026
Aedes aegypti
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Canadian Paintings @canadianpaintings.bsky.social · 21/09/2026
Golden Luminescence Jeff Dillon 2022
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Barney Panofsky's Best Intentions @mynamesnotgordy.bsky.social · 21/09/2026
French President Emmanuel Macron and Canadian Prime Minister Mark Carney pictured today using online app to translate French French to Canadian French.
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Canadian Paintings @canadianpaintings.bsky.social · 21/09/2026
Afterglow Adele Webster c. 2023
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keithmuise80.bsky.social @keithmuise80.bsky.social · 19/09/2026
Outdated’ health policies surrounding Covid still pose a danger today, says U of C researcher Dr Mark Ungrin. We also hear from Dr David Keegan and Kerri Bowser and you’ll notice they all have masks on. Great modelling along with the messaging. #MaskUp #Covid19 #LongCovid #CleanIndoorAirNow
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Princess Vimentin PhD | Cancer Biologist @princess-vimentin.bsky.social · 19/09/2026
This is noteworthy. Again, no compelling evidence supports the COVID lab leak theory. The furin cleavage site present in SARS-CoV2 was perceived as unusual, fueling the lab leak theory. But now we understand that other bat betacoronaviruses have it. 🧪 www.chemistryworld.com/news/does-th...
chemistryworld.com
Does the discovery of a new coronavirus upend the Covid-19 lab-leak hypothesis?
Sequence found in Sars-CoV-2 had never been seen in another bat coronavirus until now
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