Marcel A. Muller

coronavirus researcher #ChariteVirology. Opinions are my own.

[Marcel A. Muller @MarcelAMller]

Just out: Epidemiology and genomic features of #MERS #coronavirus in #Africa: a systematic and meta-analysis #review - International Journal of Infectious Diseases https://t.co/fegQJRFrw7

[Krutika Kuppalli, MD FIDSA @KrutikaKuppalli]

This response is from our current @NIH Director Jay Bhattacharya who is not a board certified clinician, has never been responsible for the care of patients and never led a public health crisis. Prior to #covid he was focused on economics (not science).

He sits in an ivory tower in the comfort of hindsight and abstraction continuing to minimalize #Covid

He didn’t run hospitals.
He didn’t manage outbreaks.
He didn’t staff ICUs, surge wards, or morgues.
He didn’t hold iPads for dying patients’ families.
He didn’t make real-time decisions with incomplete data while systems were collapsing

He accuses public health leaders of ignoring data, yet his narrative selectively cherry-picks facts divorced from context. In early 2020, the central problem wasn’t arrogance—it was uncertainty, exponential growth, fragile health systems, and the absence of vaccines, therapeutics, or immunity. Decisions weren’t made in an ivory tower; they were made in emergency rooms, on patient wards, ministries of health, and crisis rooms under conditions you never experienced.

He also continues to misrepresent history. #WHO did not “mandate lockdowns.” Countries made sovereign decisions based on local epidemiology, political realities, and system capacity. To rewrite that complexity as a moral failure of public health leaders is not analysis—it’s ideology.

What’s striking is not that mistakes were made—every crisis reveals blind spots. What’s striking is the confidence with which people who never carried responsibility now lecture those who did.

It’s easy to critique from the sidelines. It’s harder to lead when people are dying.

That difference matters and if you want to talk about leadership now, look at today.

#Measles is resurging in the U.S. — entirely preventable — and children are being hospitalized and dying as vaccination coverage falls and disinformation spreads.

So where is your leadership in this crisis?
Where is the accountability?
Where are the results?

From the frontlines, the problem isn’t too much humility from public-health leaders — it’s too much confidence from people who’ve never had to lead at all.

[Charité - Universitätsmedizin Berlin @ChariteBerlin]

👨‍🔬 👩‍🔬 We’re celebrating our top influencers in science! According to a @ClarivateAG analysis, 15 scientists from #CharitéBerlin are among this year’s most influential researchers in their fields worldwide. Congrats to the #HighlyCited2025! 👏 https://t.co/Cbj8H4xthA

[Jordi Rodon Aldrufeu @Rodon_J]

🧬 African strains show unique genetic traits that could affect transmissibility or pathogenicity.
MERS-CoV remains a pandemic threat—surveillance, diagnostics & genomics matter more than ever. 🌍
🔗Link to preprint
https://t.co/eMUOJdvVKh
@MarcelAMller @ChariteBerlin (2/2)

[MicrobesInfect @MicrobesInfect]

Multiple independent acquisitions of #ACE2 usage in #MERS-related coronaviruses.

• Two European bat MERS-related coronaviruses use ACE2 as their receptor
• ACE2 N432-glycosylation restricts viral recognition by MOW15-22 & PnNL2018B

https://t.co/78rVkgCviM

[Marcel A. Muller @MarcelAMller]

Another piece of the puzzle that might explain the current dominance of #MERS-CoV lineage 5 on the Arabian Peninsula. And again a project showing the power of scientific collaborations! #sciencerocks
@ChariteBerlin #ChariteVirology @NatureComms @DZIF_ https://t.co/ABGGclw0O6

[Marianne Mureithi @Docmureithi]

Proud to share, our talented PhD scholar Brian Ogoti’s paper on #MERS-CoV detection in camels at a northern Kenya abattoir. A @uonbi, @CEMA_Africa @kaviuon @Uonunitid & @ChariteBerlin collaboration under #DFG, advancing #OneHealth research. @UoN_FHS https://t.co/nTjZ1e1ExF

[Marcel A. Muller @MarcelAMller]

Our latest scientific contribution on #MERS #coronavirus. Congrats to @diyobraz2 https://t.co/UhRRNCxKoT

[Marcel A. Muller @MarcelAMller]

Our latest scientific contribution on #MERS #coronavirus. Congrats to @diyobraz2 https://t.co/UhRRNCxKoT

[Kumasi Centre for Collaborative Research (KCCR) @KCCR_GH]

A delegation from @ChariteBerlin led by world-renowned Virologist Prof. Christian Drosten, visited KCCR as part of efforts to strengthen vaccine research in Ghana.

Read more here➡️: https://t.co/69qA1JeSbR

[Marcel A. Muller @MarcelAMller]

Interested in doing a PhD in my group? You have a background (Master degree) in virology, biology, biochemistry or equivalent? Plan your own PhD project with me in the field of highly pathogenic CoV and comparative pathogenesis! (deadline March 23rd) https://t.co/HOaNjK6Z0y

[Stefan Pöhlmann @snpoehlm]

Host cell entry and neutralisation sensitivity of the emerging SARS-CoV-2 variant LP.8.1 - The Lancet Infectious Diseases https://t.co/WekBfOy7uR

[Christian Drosten @c_drosten]

Science is for everyone.

https://t.co/AlP1KWY7FM

[Friedemann Weber (@friedemann.bsky.social) @Friedemann1]

Der eine hatte sich jede Woche durch Studien gequält und sie in möglichst verständlicher Weise für die beunruhigte Bevölkerung aufgearbeitet
-> konstruktiv
Der andere fiel und fällt durch konstantes „dagegen“ auf, Aufklärung wo genau?
Einer kämpft für dich,
einer für sich

[𝘒𝘢𝘵𝘩𝘳𝘪𝘯 𝘌♭ @Musician1980]

.@ChanasitJonas: "Ich kann’s nur nochmal wiederholen: Ich bin sehr glücklich, dass die Kinder jetzt die Möglichkeit haben, sich besser zu schützen.“ 🧐 1/6
#Kinderimpfung

https://t.co/EeYmjnOQOY

[Friedemann Weber (@friedemann.bsky.social) @Friedemann1]

Anscheinend ganz gut, dass Fachleute ohne Corona-Revisionistenschlagseite noch hier in der Cloaca maXima verblieben sind.
Manche hatten sich schon gefreut, dass ihre Faktenverdrehungen ungebremst unter die Anhänger bringen könnten

[Friedemann Weber (@friedemann.bsky.social) @Friedemann1]

Also ein von Republikanern dominiertes politisches Gremium kommt nach Anhörung von GBD-Autoren und RFK-Fans zu dem Schluss, dass die GBD recht hatte.
Und sie wUrdDen gAnZ ScHlimM aUSgeGreNZT.

Was sonst noch so zB in dem Papier steht...
1/n

[Marcel A. Muller @MarcelAMller]

#ChariteVirology rocks;) Proud and happy that the hard work of our large team of excellent researchers made 3 of us Highly Cited Researchers 2024 ⁦@ChariteBerlin⁩ ⁦@DZIF_⁩ https://t.co/lL3ln25wi9

[Charité - Universitätsmedizin Berlin @ChariteBerlin]

👨‍🔬👩‍🔬Sie gehören zum „Who is Who“ der Forschung: Die Wissenschaftler:innen, die einer @ClarivateAG-Analyse zufolge zu den meistzitierten Forschenden zählen. Auch #CharitéBerlin-Forschende sind 2024 wieder zahlreich vertreten – Gratulation an die #HCR2024!👏
https://t.co/5xieJVI85P