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Andreas Bäumler

@abaumler.bsky.social

2.1K followers 290 following 110 posts

Distinguished Professor University of California Davis Member, NAS, AAM, Leopoldina, AAAS Views are my dog's

Andreas J. Bäumler is a professor in the Department of Medical Microbiology and Immunology at the University of California, Davis School of Medicine, in Davis, California. Dr. Bäumler studies the molecular mechanisms of Salmonella interaction with the intestinal mucosa. He is one of the leading researchers in the field of Salmonella research and has several highly cited publications on the topic of Salmonella infection, immunity to Salmonella, and the interactions between the host, the pathogen, and the intestinal microbiota during infection. Dr. Bäumler has a B.S. and a Ph.D. in Microbiology from University of Tübingen, Germany. Since 2010 Dr. Bäumler is a fellow of the American Academy of Microbiology and since 2020 of the Leopoldina. He is Editor in Chief of the scientific journal "Infection and Immunity." In 2021 he was awarded the Robert Koch Award for his pioneering work in understanding the regulation of the composition and function of our microflora by the cells of the intestinal epithelium. He became member of the National Academy of Sciences in 2023. Dr. Bäumler is a highly cited researcher in the field of Microbiology. .. more

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Andreas Bäumler @abaumler.bsky.social · 6h

Ancient humans crossing the Bering Strait into the Americas carried more than tools and determination—they also carried a genetic legacy from Denisovans.

www.science.org/doi/10.1126/...

Reposted by Andreas J. Bäumler, Smith

Heran Darwin, PhD @heran.bsky.social · 2d

We're hiring! Check out our ad and please re-post or forward to interested #Microbiology parties: apply.interfolio.com/174783

Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio

apply.interfolio.com

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Reposted by Andreas J. Bäumler

Department of Microbiology, The University of Chicago @uocmicrobiology.bsky.social · 3d

UChicago Microbiology is searching for tenured or tenure-track faculty working in host-pathogens interactions, viral and bacterial pathogenesis, and emerging infectious diseases. Come join our vibrant Department! microbiology.uchicago.edu
Apply here apply.interfolio.com/174404

Department of Microbiology | The University of Chicago

microbiology.uchicago.edu

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Reposted by Andreas J. Bäumler

Shabaana Khader @khadershabaana.bsky.social · 4d

Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio

apply.interfolio.com

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Reposted by Andreas J. Bäumler, Ben Bond‐Lamberty

George O'Toole (he/him/his) @geiselbiofilm.bsky.social · 10d

Please share - an Assist Prof position in microbiology

employmentopportunities.umb.edu/mob/cw/en-us...

@asm.org

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Reposted by Andreas J. Bäumler, Simon Roux, Neil Pederson , and 2 more Andreas J. Bäumler, Simon Roux, Neil Pederson, Jason Stajich, Lesley A. Hall

Tiffany Lowe-Power 🌱🦠 @tlowepower.bsky.social · 17d

Please repost -- The Univ. California Davis dept of Plant Pathology is hiring a Fungal biologist / Mycologist

Applications due Dec 1

Application portal: recruit.ucdavis.edu/JPF07339

Screenshot shows part of the job posting (with alt-text of the same text)

he Department of Plant Pathology at the University of California, Davis is seeking applications for a fulltime, tenure-track Assistant Professor position in Mycology, with a focus on plant pathogenic, symbiotic,
or mycotoxigenic fungi and fungal-like organisms (e.g., oomycetes). We are looking for a highly
motivated and creative scientist with a strong background in mycology and/or the biology of fungi and
fungal-like organisms that interact with plants. The successful candidate will be expected to develop a
world-class, externally funded research program that integrates both fundamental and applied aspects
of fungal biology within the context of plant pathology. We welcome applicants pursuing a wide range
of research topics related to plant-associated fungi, including but not limited to mechanisms of fungal
pathogenesis or symbiosis with plants, population genomics and evolution of fungal plant pathogens,
plant-associated fungal microbiomes and plant-microbe interactions, and/or one health approaches to
fungal diseases and antifungal resistance. Applicants working in other relevant research areas involving
pathogenic, symbiotic, or mycotoxigenic fungi or fungal-like organisms that affect plant health are also
encouraged to apply. The successful candidate will have significant opportunities for collaboration with
faculty in plant pathology, microbiology, genomics, and agricultural sciences, and to contribute to
addressing issues of importance to California’s agricultural and natural ecosystems.
The appointee primary teaching responsibilities will be teaching Introductory Mycology, an upperdivision lab class, and SAS 30, Mushroom, Molds & Society, a general education class for non-majors.
Additional graduate and undergraduate teaching responsibilities may be assigned based on
departmental needs and the candidate’s expertise. The department offers modern instructional
facilities, including a newly renovated teaching laboratory.

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Reposted by Andreas J. Bäumler, Alan McNally

bioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · 21d

Evidence for Neolithic acquisition of the high pathogenic island by Escherichia coli followed by recent selection https://www.biorxiv.org/content/10.1101/2025.09.17.676721v1

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Andreas Bäumler @abaumler.bsky.social · 26d

Hydrogen sulfide production distinguishes Salmonella from close relatives, but its biological significance remains obscure. This study uncovers the secret: Salmonella uses hydrogen sulfide production as a weapon to outcompete E. coli and gain a foothold in the gut.
www.pnas.org/doi/10.1073/...

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Reposted by Andreas J. Bäumler

Josh Mattila @joshmattila.bsky.social · 28d

Open tenure track assistant- or associate-level faculty position in the University of Pittsburgh's Center for Vaccine Research. Great science, great facilities, great colleagues - come work with us!

jobs.sciencecareers.org/job/674888/f...

Faculty, Center for Vaccine Research - Pittsburgh, Pennsylvania job with University of Pittsburgh | 674888

University of Pittsburgh Faculty Position Center for Vaccine Research The University of Pittsburgh School of Medicine’s Center for Vaccine Resear...

jobs.sciencecareers.org

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Reposted by Andreas J. Bäumler, Alan McNally

Judith Behnsen @judith-behnsen.bsky.social · Sep 3

Excited to share our new publication, out today in Nature! www.nature.com/articles/s41.... @kanchanj.bsky.social led this fascinating fungal-bacterial interaction project. We are grateful for our wonderful collaborators Brian Peters and David Underhill.

Commensal yeast promotes Salmonella Typhimurium virulence - Nature

Commensal Candida albicans enhances the virulence and dissemination of Salmonella enterica subsp. enterica serovar Typhimurium.

www.nature.com

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Reposted by Katharine Hayhoe, Andreas J. Bäumler, Ben Bond‐Lamberty , and 4 more Katharine Hayhoe, Andreas J. Bäumler, Ben Bond‐Lamberty, Simon Roux, Julie L. Lockwood, Elena Litchman, Brian J. Harvey

Lotus Lofgren @lotuslofgren.bsky.social · Sep 2

Our department (Berkeley PMB) is hiring an asst. prof. in Plant Resilience to Climate Change! aprecruit.berkeley.edu/JPF05049

Assistant Professor - Plant Resilience to Climate Change - Department of Plant and Microbial Biology

University of California, Berkeley is hiring. Apply now!

aprecruit.berkeley.edu

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Andreas Bäumler @abaumler.bsky.social · Aug 30

Genetic Evidence of Yersinia pestis from the First Pandemic www.mdpi.com/3429378 #mdpigenes

www.mdpi.com

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Andreas Bäumler @abaumler.bsky.social · Aug 30

Ancient Origins and Global Diversity of Plague: Genomic Evidence for Deep Eurasian Reservoirs and Recurrent Emergence mdpi.com/3442038 #mdpipathogens

mdpi.com

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Reposted by Andreas J. Bäumler

Alex Merz 🇺🇸🇨🇦🇺🇦 @merz.bsky.social · Aug 28

I am delighted to announce that the UW Department of Biochemistry has opened searches for TWO tenure-track positions.

Descriptions and links in the following two posts.

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Reposted by Andreas J. Bäumler

Stelios Chatzimanolis @schatzimanolis.bsky.social · Aug 26

Assistant Professor of Microbiology position available at the University of Tennessee at Chattanooga apply.interfolio.com/172734

Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio

apply.interfolio.com

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Reposted by Andreas J. Bäumler, Joshua S. Weitz, Chris Marshall

Vaughn Cooper @vscooper.micropopbio.org · Aug 21

Our Pitt Microbiology and Molecular Genetics department in the School of Medicine is recruiting..

Microbiologists! 🧫🦠🔬🧪

Please apply to join our faculty and enjoy these views 👀 while doing great science

cfopitt.taleo.net/careersectio...

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Reposted by Andreas J. Bäumler

Connor Tiffany @microbe-enjoyer.bsky.social · Aug 20

Happy to see the preview @joeyzacks.bsky.social and I wrote on the excellent paper recently published by the Gibbons Lab @gibbological.bsky.social is in press! I'd encourage folks interested in bacterial pathogenesis or microbial ecology to check out the preview and the research article!

Microbial bellwether: Community-scale metabolic modeling to predict infection

Microbial colonization is shaped by a complex network of interactions that influence both commensals and pathogens, including the public-health threat…

www.sciencedirect.com

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Reposted by Andreas J. Bäumler

Fabian Rivera-Chávez @fabianrchavez.bsky.social · Aug 18

1/ Excited to share the first preprint from my lab! 🎉

My postdoc Paz asked how cholera toxin (CT) helps Vibrio cholerae thrive in the gut.

Turns out, CT rewires epithelial metabolism toward L-lactate production—fueling pathogen growth in the small intestine during disease

Cholera toxin-induced disease generates epithelial cell-derived L-lactate that promotes Vibrio cholerae growth in the small intestine

Cholera toxin (CT) promotes Vibrio cholerae colonization by altering gut metabolism to favor pathogen growth. We have previously found that CT-induced disease leads to increased concentrations of L-la...

www.biorxiv.org

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Reposted by Andreas J. Bäumler, Marc Strous

Julie Pfeiffer @jkpfeiff.bsky.social · Aug 18

Faculty search announcement 2025: Tenure-Track Assistant Professor in Microbiology at UT Southwestern. We seek candidates working in microbial pathogenesis (some preference may be given to bacterial pathogens). Come join our community! (1/5) www.utsouthwestern.edu/departments/...

Department members sit at a very long table in the hallway eating a pre-Thanksgiving potluck feast.

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Reposted by Alan McNally

Andreas Bäumler @abaumler.bsky.social · Aug 9

A Salmonella T3SS-2 mutant grows fine in spleen macrophages, contradicting tissue culture dogma (PMID: 23236281). This observation was largely ignored, but adding certain carbon sources rescues growth in cultured macrophages, hinting that T3SS-2 may be doing something entirely different in vivo.

Pedro Escoll @pescoll.bsky.social · May 16

New pre-print in the lab! Beautiful work by Francisco Garcia-Rodriguez in collab with @kamovalenz.bsky.social
and @joaquinbernal.bsky.social : when macrophages are provided with specific nutrients, Salmonella can bypass its requirement of the T3SS to replicate, a process that occurs within the SCV

bioRxiv Microbiology @biorxiv-microbiol.bsky.social · May 16

Provision of Preferred Nutrients to Macrophages Enables Salmonella to Replicate Intracellularly Without Relying on Type III Secretion Systems https://www.biorxiv.org/content/10.1101/2025.05.15.653970v1

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Andreas Bäumler @abaumler.bsky.social · Aug 9

A Salmonella T3SS-2 mutant grows fine in spleen macrophages, contradicting tissue culture dogma (PMID:23236281). This was largely ignored, but adding certain carbon sources rescues growth in cultured macrophages, hinting T3SS-2 may be doing something different in vivo www.biorxiv.org/content/10.1...

Provision of Preferred Nutrients to Macrophages Enables Salmonella to Replicate Intracellularly Without Relying on Type III Secretion Systems

Intracellular survival and replication within macrophages are key virulence determinants of Salmonella enterica serovar Typhimurium. This phenomenon is traditionally attributed to the activity of its ...

www.biorxiv.org

Reposted by Andreas J. Bäumler

Carolyn Ibberson @cbibberson.bsky.social · Aug 4

Excited to have our new mini review on Microbiome Metabolism out today in I&I as part of the @asm.org New Voices in Microbiology collection! Check it out!

🧫🧪

journals.asm.org/doi/10.1128/...

Infections as ecosystems: community metabolic interactions in microbial pathogenesis | Infection and Immunity

Microbial communities are present on nearly every surface of the human body. These microbiomes exist as dynamic ecosystems that are influenced by heterogeneous nutritional and chemical landscapes, the...

journals.asm.org

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Andreas Bäumler @abaumler.bsky.social · Aug 1

Resistance is futile!

Neanderthals interbred with humans over a period of 200,000 years, in three major waves, until the last survivors were assimilated by modern humans. www.science.org/doi/10.1126/...

Recurrent gene flow between Neanderthals and modern humans over the past 200,000 years

Although it is well known that the ancestors of modern humans and Neanderthals admixed, the effects of gene flow on the Neanderthal genome are not well understood. We develop methods to estimate the a...

www.science.org

Reposted by Andreas J. Bäumler

Harmit Singh Malik @harmitmalik.bsky.social · Jul 31

NIH wants to hear from you. No really.

Request for Information on Maximizing Research Funds by Limiting Allowable Publishing Costs
grants.nih.gov/grants/guide...

NOT-OD-25-138: Request for Information on Maximizing Research Funds by Limiting Allowable Publishing Costs

NIH Funding Opportunities and Notices in the NIH Guide for Grants and Contracts: Request for Information on Maximizing Research Funds by Limiting Allowable Publishing Costs NOT-OD-25-138. NIH

grants.nih.gov

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Reposted by Andreas J. Bäumler

Andreas Bäumler @abaumler.bsky.social · Mar 14

🔬🦠 How to make sense of the taxonomic complexity & interpersonal variability of the gut microbiota? We propose that beneath this complexity lies a hierarchy of factors that control gut microbiota assembly. Read more! #Microbiome #GutHealth

authors.elsevier.com/a/1km32_,2Ci...

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Reposted by Andreas J. Bäumler

The Hedonic Adjustments of J. Alfred Prufrock, CFA @bkmacd.bsky.social · May 30

"To understand who is in control, observe who you are not allowed to criticize." -Voltaire

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Reposted by Andreas J. Bäumler

Alex Crits-Christoph @acritschristoph.bsky.social · Jul 13

Cool paper, I appreciate how they compare observed vs expected breadth of coverage.

Missing phylogenetics, could be very interesting to genotype and/or assemble some of these pathogens if coverage is high enough

Tom Booth @boothicus.bsky.social · Jul 9

🏺

Previously a preprint now a paper led by the Copenhagen group- ancient DA extracted from 1313 ancient humans shows the dynamics of different infectious diseases across Eurasia over the last 37,000 years.

www.nature.com/articles/s41...

The spatiotemporal distribution of human pathogens in ancient Eurasia - Nature

Screening shotgun-sequencing data from ancient humans covering 37,000 years of Eurasian history uncovers the widespread presence of ancient bacterial, viral and parasite DNA and zoonotic pathogens coi...

www.nature.com

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Andreas Bäumler @abaumler.bsky.social · Jul 23

Please use this link to nominate: asm.org/IAI-minireview

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Andreas Bäumler @abaumler.bsky.social · Jul 22

Meet the new Editor in Chief of mSystems journals.asm.org/doi/10.1128/...

Humanity’s urgent challenges need solutions from systems microbiology | mSystems

It is with great excitement and sincere dedication that I assume the role of editor in chief of mSystems. Building on the momentum and reputation that mSystems has achieved in its first decade, we wil...

journals.asm.org

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Andreas Bäumler @abaumler.bsky.social · Jul 22

Infection and Immunity is now welcoming nominations for highly promising scientists at the assistant professor level (or equivalent) to submit research to the next New Voices in Microbiology Collection!

Please nominate by the August 18 deadline using the below link:
app.asm.org/account/logi...

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