Simon Delagrave, PhD
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delagrave.bsky.social
Simon Delagrave, PhD
@delagrave.bsky.social
Biotech R&D scientist, entrepreneur, & consultant. Fan of science & democracy. Working for a better future. Opinions mine. 🇨🇦🇺🇸
Reposted by Simon Delagrave, PhD
Another spaceflight first! Thinking about how perhaps astroaccess.org may have helped pave the way for this.
December 20, 2025 at 6:21 PM
Reposted by Simon Delagrave, PhD
The name "Popular Science" doesn't mean we shift our coverage depending on public opinion. It means we cover relevant subjects that are rigorously researched, reliable, and grounded in reality.

And trans lives are grounded in reality.

We see y'all. No matter what.

www.popsci.com/science/tran...
First-of-a-kind study shows encouraging data for trans kids who socially transition
Ninety-four percent of participants in a new study stood firm in their trans identity after five years, and "detransitioning" is rare.
www.popsci.com
December 18, 2025 at 5:16 PM
Reposted by Simon Delagrave, PhD
The one validated intervention to slow aging and extend healthspan is not for sale.
It's exercise.
sciencedirect.com/science/arti...
December 20, 2025 at 6:22 PM
Reposted by Simon Delagrave, PhD
Two batches of grand jury testimony from the case of US v. Jeffrey Epstein were released late last night.

It includes a message for Jeffrey Epstein to return Donald Trump's phone call.

(Data Set 6 / EFTA00008599.pdf / page 10)
December 20, 2025 at 6:13 PM
I’ve written previously about what is happening to science at the Federal level in the US.
simondelagrave.substack.com/p/save-our-s...

This sadly confirms that the trajectory is not positive.

Free to read…
www.nytimes.com/2025/12/19/c...
A Somber Mood at Science Meeting as Trump Budget Cuts Continue
www.nytimes.com
December 20, 2025 at 6:23 PM
Reposted by Simon Delagrave, PhD
The CDC just announced a new study on hepatitis B vaccination on newborns in Guinea-Bissau – a move that researchers call “highly unethical” and “extremely risky”. Happy to team up with @katlay.bsky.social on this story:
www.theguardian.com/society/2025...
US plan for $1.6m hepatitis B vaccine study in Africa called ‘highly unethical’
Experts decry ‘neocolonialist’ Guinea-Bissau study after Trump administration changed advice for US babies
www.theguardian.com
December 19, 2025 at 4:46 PM
Reposted by Simon Delagrave, PhD
Everything is redacted, including the blank margins. This is what bad faith response looks like.
The Epstein Files, everybody!
December 19, 2025 at 9:19 PM
Reposted by Simon Delagrave, PhD
This is the core project of Trumpism 2.0
December 19, 2025 at 7:43 PM
Reposted by Simon Delagrave, PhD
FIRST BATCH OF FILES: www.justice.gov/queue/view?c...
Department of Justice | Homepage | United States Department of Justice
www.justice.gov
December 19, 2025 at 9:03 PM
Reposted by Simon Delagrave, PhD
Japan and New Zealand signed an information security pact and a deal to allow their armed forces to share fuel, food and services with the aim of facilitating greater bilateral and multilateral military activities. 👉 ebx.sh/r9Y9mb
December 19, 2025 at 9:05 PM
Reposted by Simon Delagrave, PhD
Here we go
DOJ Disclosures
www.justice.gov
December 19, 2025 at 9:03 PM
He is so classy.

Trump Administration Live Updates: Kennedy Center Adds Trump’s Name to Facade www.nytimes.com/live/2025/12...
Trump Administration Live Updates: Kennedy Center Adds Trump’s Name to Facade
www.nytimes.com
December 19, 2025 at 9:06 PM
Reposted by Simon Delagrave, PhD
The shape of a Denisovan skull suggests an evolutionary history at odds with genetic data. That could flip everything palaeontologists think they knew about human origins on its head
A debate is raging over the origins of an elusive cousin to modern humans
Who were the Denisovans?
econ.st
December 19, 2025 at 2:20 AM
Reposted by Simon Delagrave, PhD
When I was a medical student 45 years ago, I clerked in a 13 year old girl with deep jaundice and an abdominal mass. She was Hepatitis B positive. That had led to a primary liver tumour. In a 13-year-old. She was dead within the month. Avoidable with vaccination.
The CDC has endorsed ACIP’s decision of revoking universal access in USA to hepatitis B vaccines at birth. The policy had been in place for 34y and was changed despite no new evidence emerging of any risk of vaccination. #HealthPolicy 🧵
CDC accepts ACIP’s hepatitis B vaccine recommendations for babies
The CDC also said if a baby is not receiving a birth dose of vaccine, the initial dose should be administered no earlier than 2 months of age.
www.cidrap.umn.edu
December 18, 2025 at 8:14 AM
Reposted by Simon Delagrave, PhD
In a break with federal guidance, Illinois will continue recommending hepatitis B vaccine for newborns
In a break with federal guidance, Illinois will continue recommending hepatitis B vaccine for newborns
In a break with federal guidance, Illinois will continue to recommend that nearly all newborns receive hepatitis B vaccines, the state health department announced Wednesday.
trib.al
December 18, 2025 at 12:46 AM
Reposted by Simon Delagrave, PhD
Despite high whooping cough activity, Americans unsure about vaccine recommendations

The poll revealed that up to 30% of Americans do not know whooping cough is also called pertussis.

www.cidrap.umn.edu/p...
December 18, 2025 at 9:37 PM
Reposted by Simon Delagrave, PhD
Prime Minister Mark Carney reaffirmed he'll protect Canada's supply management system, as the United States signalled it's ready to fight over this country's dairy rules at the negotiating table.

www.cbc.ca/news/politic...
Supply management 'not on the table,' says Carney as U.S. bent on changing dairy rules | CBC News
Prime Minister Mark Carney reaffirmed he’ll protect Canada’s supply management system, as the United States signalled it's ready to fight over this country's dairy rules at the negotiating table.
www.cbc.ca
December 18, 2025 at 9:36 PM
Reposted by Simon Delagrave, PhD
BREAKING: Justice Department is reportedly rapidly redacting the Epstein files before release tomorrow, per CNN
December 18, 2025 at 9:39 PM
2 days 17 hours before daylight starts lengthening again!

days.to/until/decemb...
How many days until December Solstice?
Count down every day to December Solstice, with your own customizable countdown clock.
days.to
December 18, 2025 at 9:40 PM
Reposted by Simon Delagrave, PhD
Al The-Lab-Moose wishes you a peaceful and joyful holiday season 🎄 🕎 ❄️ 🎅
December 17, 2025 at 8:33 PM
Reposted by Simon Delagrave, PhD
For 20 minutes, Americans watched Donald Trump address the nation, “drenched in pure panic as he tried to bully an entire nation into admitting he’s doing a great job,” @radiofreetom.bsky.social argues: theatln.tc/Du4KkLTo
December 18, 2025 at 9:30 PM
Reposted by Simon Delagrave, PhD
Enhanced rock weathering shows little climate benefit in large trial

3-year Swiss study underscores the importance of site selection to maximize CO₂ sequestration. cen.acs.org/environment/... #chemsky 🧪
Enhanced rock weathering shows little climate benefit in large trial
3-year Swiss study underscores the importance of site selection to maximize CO<sub>2</sub> sequestration
cen.acs.org
December 18, 2025 at 9:31 PM