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Deepta Bhattacharya

@deeptabhattacha.bsky.social
7.6K followers 843 following 125 posts

Professor of Immunology at University of Arizona studying immune responses to infections and vaccines. Views my own.

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Reposted by Deepta Bhattacharya
Matthias Eberl @eberlmat.bsky.social · 18/09/2026
Don't the sharks get electrocuted as well.
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Health Nerd @gidmk.bsky.social · 21/08/2026
A 2024 paper went massively viral for claiming that COVID-19 vaccines caused lots of excess deaths. I complained to the journal about it at the time - it was woeful. It was recently retracted. What went wrong and why did it take so long? gidmk.substack.com/p/covid-19-v...
gidmk.substack.com
COVID-19 Vaccines And Excess Mortality - Why Does Scientific Correction Take Such A Long Time?
Some insights from a recent retraction
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Richard Sever @richardsever.bsky.social · 18/08/2026
Lots of debate about the infamous furin cleavage site (FCS) in SARS-CoV-2 and it's alleged uniqueness. But Paul Bieniasz see "numerous examples of potential FCS acquisition...during normal coronavirus replication", concluding "such events are likely commonplace". www.biorxiv.org/content/10.6...
biorxiv.org
Genetic innovation in coronaviruses driven by a viral nuclease
Genetic variation in viruses is well known to arise from polymerase-driven nucleotide misincorporation. However, insertion and deletion (indel) mutations that occur at lower, largely unknown, frequenc...
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Matthias Eberl @eberlmat.bsky.social · 14/08/2026
Post a picture of a vaccine next to a soda bottle. Dukoral (oral cholera vaccine): 3 ml suspension to be taken in a glass of water (approx. 150 ml) containing raspberry-flavoured fizzy buffer granules. #VaccinesAreSmallerThanSodaBottles
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Deepta Bhattacharya @deeptabhattacha.bsky.social · 12/08/2026
My friend @rachnatshroff.bsky.social has dedicated her career to cancer care. As she faces her own health challenges, she hopes to pay it forward with an endowed Young Investigator Award in Biliary Cancer. Please consider contributing to this wonderful cause. support.conquer.org/p2p/site/17S...
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Ed @notdred.bsky.social · 10/08/2026
Trump is a buffoon but RFK got exactly what he wanted here. The data are pretty clear that if you spread the vaccine appointments out then parents don’t come back for them. They don’t want kids to get the vaccines.
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27 UNIHTED @27unihted.bsky.social · 08/08/2026
Amongst a number of ICs, we found that many experienced substantially higher declines in success rates than average, including NIMHD (-77%), NCCIH (-53%), NHGRI (-50%), NINR (-47%), NIMH (-47%), NLM (-46%), and NEI (-40%)
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The American Association of Immunologists @aai.org · 29/07/2026
Deepta Bhattacharya (University of Arizona) opened Day 4 of the Advanced Course in Immunology with a lecture on “B Cell Memory,” covering initial B cell activation, interactions with T cells, the formation of memory B cells and long-lived plasma cells, and recall responses. #AAIcourses
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Carl Zimmer @carlzimmer.com · 15/07/2026
Here’s what I actually said. 9/10 web.archive.org/web/20130510...
Here's the trouble with the Up Goer Five craze, in way more than 140 characters. Yes, it's funny to see how difficult it is to explain something even somewhat complex using only the most common thousand words (or ten hundred, since "thousand" doesn't make the cut). But it seems that a lot of scientists who are sincerely interested in communicating to non-scientists have become convinced that Up Goer Five Text Editor offers useful training in writing simply about complex topics. This seems to me to be completely bonkers. Of course, I can't say "bonkers" in the Up Goer universe, because it doesn't make the cut. But you know what I mean. And my children know what I mean. Why? Because an average six-year-old has a vocabulary, by some estimates, of 16,000 words. And an average adult's vocabulary is around 60,000. So Up Goer Five is only useful if you are going to talk to pre-schoolers. For an audience that's any older--even second grade--I can't see how it can help. And the time people spend using Up Goer Five is time they can't spending developing their skill with metaphors and the other tools of language that make it possible to convey the gist of complicated ideas. I even get the feeling from some commenters that they see their failure to describe physics or genetics with Up Goer Five as a validation of their feeling that it's hopeless to even try. And that's the worst effect any writing exercise could ever have.
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Amy Maxmen, PhD @amymaxmen.bsky.social · 26/06/2026
This is what it looks like when one of the country's most prominent anti-vaxxers takes full control of the CDC. Emails show how CDC staffers like @drdemetre.bsky.social struggled to maintain the agency's duty to protect public health. Shoddy "reports" cited, flu vaccine campaigns pulled & more
Emails show how RFK Jr. ordered the end to flu vaccine promotion amid a bad flu season.An email from a CDC staffer points out where the data cited by new leadership is flawed.
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Dan Vergano @danvergano.bsky.social · 23/06/2026
with the people in this HR firing room alone rn, we could have a better science section than any newspaper in the country
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Dan Vergano @danvergano.bsky.social · 23/06/2026
Scientific American is being sold to LabX Media, publisher of Discover: group.springernature.com/gp/group/med... They've fired me and other union staff, ahead of June 26 vote ratification. My rates are suddenly more reasonable, if you need editing or reporting - Argonaut2026@gmail.com
group.springernature.com
Springer Nature to divest its consumer media businesses | Springer Nature Group | Springer Nature
Strategic divestment of consumer media portfolio enables Springer Nature to focus on its core business Transaction supports the long-term development
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Helen Branswell 🇨🇦 @helenbranswell.bsky.social · 12/06/2026
When the NYT published a story questioning Sec. Kennedy's engagement - including the time he spends at #HHS - he angrily retorted that anyone curious about how much time he spends in the office could consult his online calendar. STAT has tried. It is not available. www.statnews.com/2026/06/11/r...
statnews.com
RFK Jr. claims his calendar is publicly available. We've been trying to get it for a year
None of STAT's requests for Kennedy's schedule have been completed, and some haven't even been acknowledged.
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Eric Topol @erictopol.bsky.social · 02/06/2026
Big progress vs cancer, folks. The kind of event curves from randomized trials that we've not seen before for a couple of the most deadly cancers. Congrats to the oncology research community for getting these trial done.
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elizabethginexi.bsky.social @elizabethginexi.bsky.social · 29/05/2026
Summary of Key Changes in OMB’s Proposed Federal Financial Assistance Rule. Russell Vought is going destroy American Science. elizabethginexi.substack.com/p/summary-of...
elizabethginexi.substack.com
Summary of Key Changes in OMB’s Proposed Federal Financial Assistance Rule
Russell Vought is going destroy American Science
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Deepta Bhattacharya @deeptabhattacha.bsky.social · 10/05/2026
Remarkable how the know-nothings proudly and openly declare that they know nothing. FBI clown debating purified plasmid DNA with a NAS member who’s taught thousands of undergrads mol biol: “I view it as being a risk to human health, the environment and our economy.” www.ipm.org/news/2026-04...
ipm.org
‘Hysteria’ or national security? IU researcher from China to be deported
Youhuang Xiang broke the law by not declaring a shipment of plasmid DNA, but colleagues say the substance is harmless and important for his research.
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Deepta Bhattacharya @deeptabhattacha.bsky.social · 10/05/2026
Roger taught my molecular biology class my sophomore year—kind man and brilliant scientist who brought distinction to the university. I’m ashamed of my alma mater for not defending him from what is obviously political retribution. www.science.org/content/arti...
science.org
After USDA request, Indiana plant biologist locked out of lab by school
Move comes after Roger Innes complained about the government’s prosecution of Chinese postdocs
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Deepta Bhattacharya @deeptabhattacha.bsky.social · 15/04/2026
Check out our review on plasma cells, led by Colin Fields! How these fascinating cells are formed can influence what they do, where they live, and how long they live to keep you immune. authors.elsevier.com/a/1mxIC3qNrV...
authors.elsevier.com
Please wait whilst we redirect you
All content on this site: Copyright © 2026 Elsevier B.V., its licensors, and contributors. All rights are reserved, including those for text and data mining, AI training, and similar technologies. For all open access content, the relevant licensing terms apply.
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Barack Obama @barackobama.bsky.social · 13/04/2026
The victory of the opposition in Hungary yesterday, like the Polish election in 2023, is a victory for democracy, not just in Europe but around the world.
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Edward Nirenberg @enirenberg.bsky.social · 09/04/2026
The new ACIP charter includes liaison memberships for the Association of American Physicians and Surgeons, Physicians for Informed Consent, and the Independent Medical Alliance. None of these are expert societies and all of them have a history of disseminating antivaccine propaganda.
cdc.gov
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Edward Nirenberg @enirenberg.bsky.social · 25/03/2026
False balance is not rigor. It isn’t unbiased reporting. If someone tells you it’s raining and someone else says it isn’t, journalists aren’t supposed to say “people disagree about whether or not it’s raining,” they’re supposed to look outside and find out for themselves.
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Deepta Bhattacharya @deeptabhattacha.bsky.social · 24/03/2026
I keep learning new ways maternal antibodies protect infants! The latest from @babiesresearch.bsky.social on protection against E. coli sepsis and new potential vaccine targets.
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Harmit Singh Malik @harmitmalik.bsky.social · 28/02/2026
😂 😭
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Max Kozlov @maxkozlov.bsky.social · 27/02/2026
The impact is already hitting science agencies hard. The NIH—the world's largest public biomedical research funder—has had to rely on leftover stopgap funds. New grant awards have slowed to a trickle — exacerbating the effects of a record-long shutdown in October. (h/t @jeremymberg.bsky.social)
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Brandon Friedman @brandonfriedman.bsky.social · 24/01/2026
This is essentially what governments did in the late 1900s and early 2000s with respect to Nazis. Whether you were a lowly concentration camp guard or in Hitler's inner circle, if there was evidence you were a Nazi, it was straight to jail with your walker. It worked.
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Sharon 🪳🌹 @sharonk.bsky.social · 24/01/2026
O'Hara refusing to step away from the scene is something to keep an eye on
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Kat Abughazaleh @katmabu.bsky.social · 24/01/2026
ICE just gunned down ANOTHER person, beating a man half to death before shooting him at point blank range. What the fuck are we doing? ARREST ICE NOW. PROSECUTE ICE NOW. I will not rest until every single one of these murderers is held accountable to the communities they terrorize.
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functional moron @fiveburger.bsky.social · 24/01/2026
idk why everyone’s so mad it sounds like tim asked him very nicely to stop murdering us in the street.
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Will Stancil @whstancil.bsky.social · 24/01/2026
in case you're curious about how angry Minnesota is about ICE, it was -20 today
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Max Kozlov @maxkozlov.bsky.social · 22/01/2026
🚨 New from me: Grant review at more than half of NIH's institutes could be frozen by the end of the year. That's because crucial NIH grant-review panels are slated to be empty at those institutes by Jan 2027. A wonky bureaucratic problem with big implications. A short 🧵
nature.com
Exclusive: key NIH review panels due to lose all members by the end of 2026
Thirteen of the agency’s advisory councils, which must review grant applications before funding is awarded, are on track to have no voting members.
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Minnesota Star Tribune @startribune.com · 22/01/2026
Tomorrow’s front page of the Minnesota Star Tribune: Jan. 23, 2026
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Margaret Killjoy @margaret.bsky.social · 22/01/2026
Another friend put it to me like this: "ICE has made the classic Nazi mistake. They've invaded a winter people in the winter."
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Altmetric @altmetric.com · 22/01/2026
That’s not the thing that’s broken techcrunch.com/2026/01/21/x...
techcrunch.com
X copies Bluesky with a 'Starterpacks' feature that helps you find who to follow | TechCrunch
X says the new feature, similar to Bluesky's Starter Packs, will arrive in the coming weeks.
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Noel Casler Comedy @noelcaslercomedy.bsky.social · 21/01/2026
If you’re a grown ass man in full tactical gear asking a child to show you ID or proof of citizenship you failed at life. Utterly & completely failed. Loser.
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ceej @ceej.online · 22/01/2026
There’s no point during the detention of a five-year-old that any person with a functioning moral center would not step back to reassess the situation and their place in it. That nobody involved did proves they lack the common interiority required to successfully coexist in ordered society.
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ceej @ceej.online · 22/01/2026
I guess I do think if you participated in the arrest of a five-year-old you are probably just fundamentally incompatible with society. That you are not a safe person for humanity to be around, generally
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Don Moynihan @donmoyn.bsky.social · 22/01/2026
This guy went to work today, put a mask on, kidnapped a 5 year old child, and then used him as bait so both he and his father could be sent behind bars
A masked ICE officials with a 5 year old child
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Jeremy Berg @jeremymberg.bsky.social · 14/01/2026
Likewise, Congressman Cole from Oklahoma is the chair of the overall House Appropriations committee. If you can, reach out to his office as well. It is noteworthy that OMB is willing to veto a bill over a minor-seeming NIH operational issue. This makes me think this is part of a bigger plan...
media.tenor.com
patrick star from spongebob squarepants with his hands folded
ALT: patrick star from spongebob squarepants with his hands folded
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Keystone Symposia @keystonesymposia.bsky.social · 09/01/2026
🚀 Early-career scientists: ready to share your work? Submit a short talk abstract or apply for a scholarship for the Keystone Symposium on B Cells & Plasma Cells by Jan 14 (11:59 pm MST). Join leaders incl. @kimljacobson.bsky.social & @deeptabhattacha.bsky.social 🔗 keysym.us/KSBCells26 #KSBCells26
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Helen Branswell 🇨🇦 @helenbranswell.bsky.social · 09/01/2026
Did slashing multiple vaccines from the childhood vaccine schedule bring the US in line with other countries? In a word, no. The US now recommends all kids be protected against fewer diseases than South Korea, Israel, Saudi Arabia, Taiwan & many more. www.statnews.com/2026/01/09/c...
statnews.com
When it comes to vaccine schedules, the U.S. is now the outlier
A STAT analysis of vaccine recommendations in 38 countries suggests the U.S. is now an outlier.
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Saloni @scientificdiscovery.dev · 06/01/2026
I don't think it's true (or helpful) to say that Denmark recommends fewer vaccines because their healthcare system can treat the diseases better. The trend is for countries to move to universal recommendations over time. Some countries do it much earlier than others.
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Prof Peter Hotez MD PhD DSc(hon) @peterhotezmdphd.bsky.social · 01/01/2026
YEAR ONE MAHA
MAHA
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Max Kozlov @maxkozlov.bsky.social · 29/12/2025
Now the big question is: Can NIH be trusted to review these applications in good faith? The Challenged Directives were extremely vague to begin with — so what's to stop the agency from applying them under the table, especially with more influence from political appointees? bsky.app/profile/maxk...
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Deepta Bhattacharya @deeptabhattacha.bsky.social · 27/12/2025
When I first saw the headline for this op-ed, I was hoping it would tell me that the science and policy are catching up to meet the climate goals. But instead it argues for giving up on the goals themselves and ignores why the goals were set in the first place.
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Paul Knoepfler @stemcells.bsky.social · 27/12/2025
ICYMI: Iowa AG wins $1M from stem cell clinic ipscell.com/2025/12/iowa... Some state AGs are killing it on stem cell oversight & helping consumers, better than FDA #stemcells #stemcell
ipscell.com
Iowa AG wins $1M from stem cell clinic - The Niche
Stem cell biologist discusses how the Iowa AG won $1 million from a stem cell clinic in that state and how it fits into the bigger picture.
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Dorit Reiss @doritreiss.bsky.social · 11/12/2025
Aaron Siri Says No One Has Identified Errors in His ACIP Presentation. Here Are Several. Mr. Siri is not looking at the total data and misunderstands or misrepresents much of what he does address. open.substack.com/pub/jakescot... via @jakescottmd.bsky.social
open.substack.com
Aaron Siri Says No One Has Identified Errors in His ACIP Presentation. Here Are Several.
He's auditing regulatory paperwork, not science.
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Edward Nirenberg @enirenberg.bsky.social · 07/12/2025
I'm seeing a lot of discussion of this study, and so far everything I have seen goes well beyond what the data of this study allow us to conclude. Let's look at this together. A thread 🧵
ijidonline.com
Persistent Attenuation of Lymphocyte Subsets After Mass SARS-CoV-2 Infection
As of September 15, 2024, the COVID-19 pandemic had resulted in more than 776 million confirmed cases and seven million deaths worldwide [1]. While most patients recovered from the acute phase of COVI...
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Edward Nirenberg @enirenberg.bsky.social · 05/12/2025
AAP on the ball and already out with comments about the ACIP meeting: www.aap.org/en/news-room...
aap.org
Statement from Leading Medical, Health and Patient Advocacy Groups on CDC Vaccine Meeting
"We are deeply alarmed by the actions taken this week by the Centers for Disease Control and Prevention’s Advisory Committee on Immunization Practices (ACIP). The apparent goal of this meeting was to ...
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Helen Branswell 🇨🇦 @helenbranswell.bsky.social · 05/12/2025
A panel that advises #CDC on vaccine policy votes to do away with the recommendation all babies should be vaccinated against #hepatitisB at birth. "We are doing harm," said panel member Cody Meissner, who voted against this #ACIP recommendation. www.statnews.com/2025/12/05/c...
statnews.com
CDC panel recommends delaying birth dose of hepatitis B vaccine
The CDC's ACIP panel voted to recommend delaying the birth dose of the hepatitis B vaccine, ending a policy that has reined in the virus.
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