Kristian G. Andersen
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kgandersen.bsky.social
Kristian G. Andersen
@kgandersen.bsky.social
Infectious diseases & genomics. Immunologist in (voluntary) exile. Minimal sarcasm. Fierce HOA (Hater of Acronyms). Personal account - opinions expressed are my own and not those of my employer.
This is the key point - it's not about Moderna's flu vaccine, it's about sending a signal to the rest of the industry that vaccine development isn't viable in the US. It's all part of the larger anti-vaccine agenda.
FDA's decision not to accept Moderna's flu vaccine filing has sent shock waves through pharma. "When there’s uncertainty about the path to approval & the reliability of the process, that really has pretty serious consequences,” one player told @jasonmast.bsky.social. www.statnews.com/2026/02/12/f...
FDA’s rejection of Moderna threatens to stifle broader vaccine industry
Experts say the FDA "moved the goalposts" on Moderna, creating "a destructive precedent that will undermine the future of vaccine development" in the U.S.
www.statnews.com
February 12, 2026 at 9:55 PM
Reposted by Kristian G. Andersen
You can't... repeal... a scientific finding. At that point it's just called lying about it.
Breaking News: The Trump administration repealed the bedrock scientific finding that greenhouse gases threaten human life and well being, meaning that the EPA can no longer regulate them. nyti.ms/4rSszQu
February 12, 2026 at 8:38 PM
Reposted by Kristian G. Andersen
Ok, I know promised a thread on the fascinating and important new research explaining what happened with the rare, serious side effects of AstraZeneca's and Johnson&Johnson's Covid-19 vaccines.
So, @science.org story is here and 🧪🧵 is coming:
www.science.org/content/arti...
Rare, dangerous side effects of some COVID-19 vaccines explained
“Groundbreaking” study uncovers why adenovirus-based shots caused life-threatening blood clots and bleeding in some people
www.science.org
February 12, 2026 at 8:28 PM
Reposted by Kristian G. Andersen
Here is an announcement for everybody who is sick and tired on the attacks on science and scientists.

It has been months in the making, but now we are ready to fight back.

First episode airs tomorrow 5pm UK.

New episode every friday.

Incredible guests lined up.
open.substack.com/pub/protagon...
Announcing: Science Counterpunch
Fighting back for science & scientists was never more urgent
open.substack.com
February 12, 2026 at 3:10 PM
Reposted by Kristian G. Andersen
I really enjoyed working on this piece on Riutord-Fe et al, a fantastic piece of work that highlights both the power of comprehensive, longitudinal wildlife surveillance and the challenges of disentangling the roles different hosts play in pathogen maintenance ecology. www.nature.com/articles/d41...
Squirrels could be a reservoir for the virus that causes mpox
The species in which monkeypox virus naturally circulates is uncertain, but wildlife surveillance data suggest that the fire-footed rope squirrel is a likely candidate.
www.nature.com
February 12, 2026 at 9:42 AM
Fascinating stuff - the conundrum of why, in extremely rare cases, people ended up getting dangerous blood clotting after having received the adenovirus-based J&J (my first COVID-19 vaccine; Ad26-based) or AstraZeneca (ChAdOx1-based) vaccines has been solved.
Scientists Figured Out the Problem With Johnson & Johnson’s COVID Vaccine
Rare but dangerous blood clotting associated with that vaccine as well as AstraZeneca’s had a genetic cause, according to a new paper.
www.theatlantic.com
February 11, 2026 at 11:02 PM
Reposted by Kristian G. Andersen
Director-General @drtedros.who.int minced no words today when asked about the proposal to run a trial of a hepatitis B vaccine birth dose in Guinea-Bissau. It would be "unethical to proceed with this study," he said. "Maybe it's better to say it bluntly & straight."
www.statnews.com/2026/02/11/h...
WHO director-general calls plans for U.S.-funded vaccine trial ‘unethical’
The director-general of the WHO said a U.S.-funded study of the hepatitis B vaccine in Guinea-Bissau would be “unethical” if it proceeds as planned.
www.statnews.com
February 11, 2026 at 7:00 PM
Reposted by Kristian G. Andersen
This is outrageous, and (though it was completely obvious he should never have held this spot), Vinay Prasad needs to go. This vaccine candidate deserves review, not ideologically motivated rejection. Lives are at stake. www.statnews.com/2026/02/11/m...
Prasad overruled FDA staff to reject Moderna's flu vaccine application
The rejection is the latest instance of Vinay Prasad overruling career FDA scientists to place vaccines under harsher scrutiny.
www.statnews.com
February 11, 2026 at 3:57 PM
Reposted by Kristian G. Andersen
Big @bostonglobe.com / MassINC Polling survey out this morning. "They came to Massachusetts to cure disease. Now they’re packing up their labs." We surveyed NIH funded scientists in Massachusetts about federal funding cuts & policies. Here's what they told us. www.bostonglobe.com/2026/02/09/m...
They came to Massachusetts to cure disease. Now they’re packing up their labs. - The Boston Globe
In a first-of-its-kind survey, the Globe asked hundreds of scientists about the impact of federal funding cuts.
www.bostonglobe.com
February 11, 2026 at 11:25 AM
Reposted by Kristian G. Andersen
NEW: The F.D.A. refused to accept an application from Moderna for its mRNA flu vaccine.

Its reason: The agency did not think Moderna compared the new vaccine to one of the best flu shots available. The company spent $750M+ on a 41,000 person study.

www.nytimes.com/2026/02/10/h...
F.D.A. Refuses to Review Moderna Flu Vaccine
www.nytimes.com
February 10, 2026 at 11:12 PM
I know I'm late to the game, but I know absolutely nothing about bunnies or funny-shaped balls...

But that was awesome - even if I understood less than 5% of what was said, I 100% got the meaning.

This was everything that made me feel blessed for becoming part of this experiment back in 2009 🐰🏈🙏🌟.
February 10, 2026 at 1:25 AM
Very nice!
February 9, 2026 at 9:12 PM
Reposted by Kristian G. Andersen
A long time ago in a galaxy far away, there was a SARS-CoV-2 pandemic. Our paper, led by @martibartfast.bsky.social
a) correcting errors in 4.5 million genomes & their phylogeny
b) improving representation of the Global South in public data
www.nature.com/articles/s41...
(thread 1/n)
Addressing pandemic-wide systematic errors in the SARS-CoV-2 phylogeny - Nature Methods
This Resource paper presents a global SARS-CoV-2 phylogenetic tree of 4,471,579 high-quality genomes consistently constructed by Viridian, an efficient amplicon-aware assembler.
www.nature.com
February 9, 2026 at 3:16 PM
Reposted by Kristian G. Andersen
Good thread. Another issue with the editorial is overall NIH funding is not a good measure of success. That doesn't bring back global public health cuts, the lives lost, cancer trials disrupted, vaccine research ended, diversity grants eliminated, foreign subcontracts killed, or grants disrupted.
February 8, 2026 at 6:54 PM
Reposted by Kristian G. Andersen
In a long-form piece, I address recent claims by the Editor-in-Chief of @science.org that "quiet" insiders rather than "heated" activists should be credited for passage of top-line budget numbers for science and medical research.

joshuasweitz.substack.com/p/science-ad...
Science Advocacy: The Risks of Playing the Long Game vs. Playing the Game For Too Long
Reflecting on the establishment view of recent ‘wins’ for research and what real winning looks like when public-facing advocacy is credited and included in broader coalitions.
joshuasweitz.substack.com
February 8, 2026 at 4:46 PM
Reposted by Kristian G. Andersen
I think we have to be very careful here. The appropriations bills are one thing, but as you all know, this administration has a bag of dirty tricks they have and will continue to use to undermine research and frankly, methodically chip away at it until it is a shell of its former self. 1/
February 8, 2026 at 1:23 PM
Yeah, international economics 101 - except, that one doesn’t work when the currency is also the world currency… I’m sure someone told him 😛
February 7, 2026 at 8:17 PM
It's baffling this isn't discussed more.
February 7, 2026 at 5:52 PM
Evolutionary biology entered the room... 😆
February 7, 2026 at 5:39 PM
This is great to see - about time this made it to the US! The movie isn't really about the origin of the pandemic, but it *is* about those wrongfully being blamed for it - it's important to hear their story, and this movie does it well.

Peter mentions April, but I believe it's February!
February 7, 2026 at 5:38 PM
Agreed!
February 7, 2026 at 2:56 AM
Always hoping for comments and insights - whether the questions are rhetorical or not 😉
February 6, 2026 at 11:31 PM
Nerd.
February 6, 2026 at 11:29 PM
That's a pretty interesting graph - pretty insane!
February 6, 2026 at 10:36 PM