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Shai Bel (The Mucus Man)

@mucusman.bsky.social
3.7K followers 1.6K following 334 posts

The Bel Lab, boldly going where no one else bothers to. Associate professor @uwmadisonmmi.bsky.social. Opinions are my microbiota's. bellab.mmi.wisc.edu

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Reposted by Shai Bel (The Mucus Man)
Leah Houri-Zeevi @leahhouri.bsky.social · 25/09/2026
🩸🩸🩸TODAY WE SHARE TWO MAJOR DISCOVERIES🩸🩸🩸 1. We peered into genomes and brains of the rare mosquitoes that QUIT feeding on blood and found what biting is built from 2. Humans got rid of isoleucine in their blood, malaria suffers from it, and mosquito proteomes budget for it THREADS>
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Reposted by Shai Bel (The Mucus Man)
Caroline Bartman @cbartman.bsky.social · 10/09/2026
Excited to share the first published paper from my lab! Postdoc Helen Jordan led this study on 1) how metabolites change differently in inflammation in tissues versus in cells in a dish and 2) the role of one of the most-increased metabolites, soluble sialic acid www.jbc.org/article/S002...
jbc.org
Metabolomics of in vivo inflammation identifies soluble sialic acid as a conserved myeloid-cell metabolite
During an immune response, metabolism changes dramatically. Metabolites are oxidized to power immune cell functions, serve as building blocks for proliferation, and act as effectors to regulate pathog...
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Shai Bel (The Mucus Man) @mucusman.bsky.social · 01/09/2026
🚨🚨 THE MUCUS IS COMING TO AMERICA!! I'm excited to announce that I will be joining the wonderful @uwmadisonmmi.bsky.social to continue exploring the wonders of mucus!
static.klipy.com
Elmo Wants More Slime
ALT: Elmo Wants More Slime
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Reposted by Shai Bel (The Mucus Man)
Eric Topol @erictopol.bsky.social · 20/11/2025
New discovery in ulcerative colitis: a bacterial toxin that kills macrophages and increases inflammation, which could be the foundation for a new treatment science.org/doi/10.1126/... science.org/doi/10.1126/... @science.org
science.org
A bacterial toxin disarms gut defenses against inflammation
Macrophage-toxic bacteria from patients with ulcerative colitis worsen gut inflammation in mice
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Reposted by Shai Bel (The Mucus Man)
Michael Baym @baym.lol · 20/11/2025
Hot off the press! Our latest paper led by @fernpizza.bsky.social, understanding how plasmids evolve inside cells. These small, self-replicating DNA circles live inside bacteria and carry antibiotic resistance genes, but also compete with one another to replicate. 1/ www.science.org/doi/10.1126/...
science.org
Intracellular competition shapes plasmid population dynamics
From populations of multicellular organisms to selfish genetic elements, conflicts between levels of biological organization are central to evolution. Plasmids are extrachromosomal, self-replicating g...
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Shai Bel (The Mucus Man) @mucusman.bsky.social · 20/11/2025
I'm happy to share a perspective that @soniamodilevsky.bsky.social and I wrote about a new and exciting paper in @science.org with big implications for IBD. Check it out: A bacterial toxin disarms gut defenses against inflammation | Science www.science.org/doi/10.1126/...
science.org
A bacterial toxin disarms gut defenses against inflammation
Macrophage-toxic bacteria from patients with ulcerative colitis worsen gut inflammation in mice
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Reposted by Shai Bel (The Mucus Man)
Mark Mandel @markjmandel.bsky.social · 03/09/2025
Additional talks this fall include @mucusman.bsky.social, Selena Sagan (hosted by @uwmadisonmdtp.bsky.social), @teralevin.bsky.social, @csdetweiler.bsky.social, Jan Rehwinkel, Sung Chul Park, Claire O'Leary, Sean Crosson, @torreslab.bsky.social, and Patricia Champion
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Shai Bel (The Mucus Man) @mucusman.bsky.social · 14/08/2025
Highly recommend 👇🏻
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Reposted by Shai Bel (The Mucus Man)
Edelblum Lab @edelblumlab.bsky.social · 07/08/2025
📚NEW #gdTcell PAPER ALERT! 'Microbiota promote enhanced CD39 expression in γδ intraepithelial lymphocytes through the activation of TCR and IL-15 signaling' is now out in @mucosalimmunol.bsky.social! #gastrosky #GIsky #IBDsky Join us for a Bluetorial 🧵...
sciencedirect.com
Microbiota promote enhanced CD39 expression in γδ intraepithelial lymphocytes through the activation of TCR and IL-15 signaling
Intraepithelial lymphocytes expressing the γδ T cell receptor (γδ IEL) provide continuous surveillance of the intestinal epithelium. We report that mi…
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Shai Bel (The Mucus Man) @mucusman.bsky.social · 14/08/2025
🚨While the world is burning down around us, I'm happy to share that I've been promoted to Associate Professor with tenure. Though this is considered a personal achievement, it was only possible due to the wonderful trainees in the lab, who carried me here❤️.
media.tenor.com
a man is writing prof on a blackboard
ALT: a man is writing prof on a blackboard
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Reposted by Shai Bel (The Mucus Man)
Conference on Beneficial Microbes @benmicrobesmtg.bsky.social · 18/06/2025
This was not our conference, please redirect to the appropriate advisory committee. beneficialmicrobes.events/advisory-com...
beneficialmicrobes.events
The 11th Beneficial Microbes Conference
The 11th Beneficial Microbes Conference will provide an overview of the latest scientific results and future developments related to pre- and probiotics and their importance to human and animal health...
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Reposted by Shai Bel (The Mucus Man)
Dor Salomon @drdorsalomon.bsky.social · 18/06/2025
This is unacceptable. A total disgrace. Shame on the organizers. Leave science out of it! I am appalled to see this in the microbiology community 🦠
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Ariel Munitz @arielmunitz.bsky.social · 18/06/2025
Total disgrace!
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Leigh Knodler @leighknodler.bsky.social · 03/06/2025
Just a few spots remaining for the GRC Salmonella Biology and Pathogenesis meeting to be held in August. The final program is now online. www.grc.org/salmonella-b... Apply now to hear about the latest scientific discoveries about Salmonella, meet up with old friends, make new friends......
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Reposted by Shai Bel (The Mucus Man)
Waggoner Lab @labwaggoner.bsky.social · 28/05/2025
A coordinated cellular network regulates tolerance to food @nature.com @annarudnitsky.bsky.social @kedmiranit.bsky.social www.nature.com/articles/s41...
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Reposted by Shai Bel (The Mucus Man)
Ranit Kedmi @kedmiranit.bsky.social · 27/05/2025
Incredible! Over the past 2 months, 5 independent manuscripts — from @TheColonnaLab, Dan Littman, @gardnerlabucsf.bsky.social and @chrysothemisbrown.bsky.social , and our own (now in @nature.com, www.nature.com/articles/s41...), reports that the dietary pTreg program is initiated by RORγt⁺ APCs. /1
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Reposted by Shai Bel (The Mucus Man)
orchardlab.bsky.social @orchardlab.bsky.social · 27/05/2025
Excited to share the work of Mikayla Olson in the lab making a replication competent reporter virus for murine norovirus. journals.plos.org/plospathogen...
journals.plos.org
Development of a replication competent murine norovirus reporter system
Author summary Colloquially known as “the stomach bug,” human norovirus is a leading cause of foodborne illness worldwide. Despite its prevalence, there are no approved therapeutics or vaccines agains...
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Reposted by Shai Bel (The Mucus Man)
Irene Salinas Remiro @drsalinaslab.bsky.social · 27/05/2025
Our latest paper is now out. A long standing collaboration with the Sunyer lab where our teams show the requirement for secretory IgM in the gut mucosa to control microbiota homeostasis and metabolism. Enjoy! #sIgM #mucosalimmunology www.nature.com/articles/s41...
nature.com
Secretory IgM regulates gut microbiota homeostasis and metabolism - Nature Microbiology
Rainbow trout with depleted secretory IgM reveal interesting insights into the elusive role of this immunoglobulin in maintaining gut microbiota.
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Reposted by Shai Bel (The Mucus Man)
Asaf Levy @asaflevylab.bsky.social · 25/05/2025
Tomorrow I will host Will Ratcliff @wcratcliff.bsky.social in the virtual microbiology journal club. Title: "Exploring the origin of multicellularity in real time: what we've learned from 10,000 generations of laboratory evolution" link below -
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Shai Bel (The Mucus Man) @mucusman.bsky.social · 24/05/2025
Secretory autophagy strikes again! 🧪 www.pnas.org/doi/10.1073/...
pnas.org
Unconventional secretion of PARK7 requires lysosomal delivery via chaperone-mediated autophagy and specialized SNARE complex | PNAS
PARK7/DJ-1, a redox-sensitive protein implicated in neurodegeneration, cancer, and inflammation, exhibits increased secretion under stress. We prev...
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Reposted by Shai Bel (The Mucus Man)
Germán Bonilla-Rosso @germusthermophilus.bsky.social · 22/05/2025
🧪🔬🦠🧫🌍 This is the kind of paper we should all be waiting for! Because sadly we still don't have reliable methods to count bacterial abundance from microbiomes. (I haven't read it yet, but I love the intention already) www.nature.com/articles/s41...
nature.com
Absolute quantification of prokaryotes in the microbiome by 16S rRNA qPCR or ddPCR - Nature Protocols
This protocol enables rigorous and reproducible quantification of prokaryotic concentration in stool samples by 16S rRNA qPCR or ddPCR.
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Reposted by Shai Bel (The Mucus Man)
Cadwell Lab @cadwelllab.bsky.social · 17/05/2025
Congratulations Xiaomin Yao and Eugene Rudensky for publishing this story @cp-immunity.bsky.social! Big thank you to NIH for making this work possible. Here’s a brief summary of this 🤯 finding about a gene variant that YOU 🫵 most likely have 1/n
kwnsfk27.r.eu-west-1.awstrack.me
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Shai Bel (The Mucus Man) @mucusman.bsky.social · 01/05/2025
On my way to #DDW25!!
media.tenor.com
a pinkfong advertisement shows a cartoon character pushing a yellow object
ALT: a pinkfong advertisement shows a cartoon character pushing a yellow object
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Reposted by Shai Bel (The Mucus Man)
Ananya Parthasarathy @ananya-p.bsky.social · 27/04/2025
Had an amazing time at #APS2025, and so happy to have presented my poster and flash talk! First conference ✅
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Reposted by Shai Bel (The Mucus Man)
Leah Houri-Zeevi @leahhouri.bsky.social · 20/04/2025
✨🦟✨HOW DO MOSQUITOES HAVE SEX? ✨🦟✨ Join us for a wild journey into hidden female control, rapidly evolving stimulation devices, fierce species competition, and DEADLY MOSQUITOES! www.biorxiv.org/content/10.1...
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Reposted by Shai Bel (The Mucus Man)
Shai Bel (The Mucus Man) @mucusman.bsky.social · 21/04/2025
🚨🚨 Dear friends in North America: I will be taking a 1-year sabbatical at @uwmadisonmmi.bsky.social with the wonderful @markjmandel.bsky.social (bringing the #mucus back to the marine world) from August 2025. If you want to meet up, let me know! Please share
media.tenor.com
a purple octopus with big eyes is crawling on the ground in the ocean .
ALT: a purple octopus with big eyes is crawling on the ground in the ocean .
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Reposted by Shai Bel (The Mucus Man)
Eduardo Villablanca @ejvillablanca.bsky.social · 23/04/2025
Honored to have been invited to give a #GlobalImmunoTalk! Grateful for the opportunity to share our work with the global immunology community. If you missed it, you can watch the full talk here 👇🏼 www.youtube.com/live/jBLDd3M...
youtube.com
"The Architecture of Intestinal Inflammation and Healing" by Dr. Eduardo Villablanca
YouTube video by GLOBAL IMMUNOTALKS
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Reposted by Shai Bel (The Mucus Man)
Merav Cohen @meravcohen.bsky.social · 08/03/2025
Very excited to share the first study from the lab!!! We found a pro-tumor niche dictated by neutrophil-cancer cell physical crosstalk in the breast #TME Published in Nature Cancer Kudos to @sandracamargog.bsky.social and @orimoskowitz.bsky.social for leading it
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King Lab at McGill University @kinglabmcgill.bsky.social · 22/04/2025
I am very excited to share our article on IFNg, stroma and disease tolerance during intestinal helminth infection published today in Cell. This work was lead by the amazing @susanwestfall.bsky.social and supported by many international collaborators. www.sciencedirect.com/science/arti...
sciencedirect.com
A type 1 immune-stromal cell network mediates disease tolerance against intestinal infection
Type 1 immunity mediates host defense through pathogen elimination, but whether this pathway also impacts tissue function is unknown. Here, we demonst…
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Shai Bel (The Mucus Man) @mucusman.bsky.social · 21/04/2025
🧪
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Reposted by Shai Bel (The Mucus Man)
Mark Mandel @markjmandel.bsky.social · 21/04/2025
Super excited to host Shai in Madison starting this fall!! bsky.app/profile/mucu...
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Shai Bel (The Mucus Man) @mucusman.bsky.social · 21/04/2025
🚨🚨 Dear friends in North America: I will be taking a 1-year sabbatical at @uwmadisonmmi.bsky.social with the wonderful @markjmandel.bsky.social (bringing the #mucus back to the marine world) from August 2025. If you want to meet up, let me know! Please share
media.tenor.com
a purple octopus with big eyes is crawling on the ground in the ocean .
ALT: a purple octopus with big eyes is crawling on the ground in the ocean .
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Reposted by Shai Bel (The Mucus Man)
Andreas Bäumler @abaumler.bsky.social · 04/04/2025
🚨 Big news! Infection and Immunity is now open access! 🌍🔬 That means wider visibility & impact for your research. Worried about fees? 💸 Check out how IAI stacks up against other journals—you might be surprised. #OpenAccess #SciComm #Microbiology
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Dor Salomon @drdorsalomon.bsky.social · 17/03/2025
Takeaway: WHIX is a microscopic marvel—a tiny domain with enormous potential. From its double-sided toxic punch to its delivery finesse, it’s the new T6SS delivery domain on the market. Stay tuned for more cool stories about WHIX and about our new model bacteria, Aeromonas jandaei! 8/9
media.tenor.com
a man in a suit and tie stands in front of an amazon prime logo
ALT: a man in a suit and tie stands in front of an amazon prime logo
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Reposted by Shai Bel (The Mucus Man)
Dor Salomon @drdorsalomon.bsky.social · 17/03/2025
Our new story on #T6SS WHIX effectors and bacterial warfare is out in @plosbiology.org. It has a lot more data than the original bioRxiv preprint, so take a look even if you’ve read that. 🦠 What did we find? A thread... 1/9 journals.plos.org/plosbiology/...
journals.plos.org
A new class of type VI secretion system effectors can carry two toxic domains and are recognized through the WHIX motif for export
The secretion mechanisms of many type VI secretion system (T6SS) effectors in Gram-negative bacteria remain unclear. This study identifies a new class of T6SS effectors, which can harbor either one or...
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Reposted by Shai Bel (The Mucus Man)
Çagla Tükel @caglatukel.bsky.social · 13/03/2025
Very happy to be a part of this beautiful study led by Drs Maria Cimini and Raj Kishore showing a role for SAA3 amyloidosis after myocardial infarction (MI) and how SAA3 loaded exosomes can drive injury www.sciencedirect.com/science/arti...
sciencedirect.com
Podoplanin-positive cell-derived small extracellular vesicles contribute to cardiac amyloidosis after myocardial infarction
Cardiac amyloidosis is a secondary phenomenon of an already pre-existing chronic condition. Whether cardiac amyloidosis represents one of the complica…
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Reposted by Shai Bel (The Mucus Man)
Ori Moskowitz @orimoskowitz.bsky.social · 07/03/2025
Super happy and proud to finally share this work. I am thrilled with the result, and very grateful for the wonderful partnership with @sandracamargog.bsky.social and the expert guidance of @meravcohen.bsky.social.
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Shai Bel (The Mucus Man) @mucusman.bsky.social · 08/03/2025
Fantastic new paper by the very talented @meravcohen.bsky.social and her group. Check it out!
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Ariel Munitz @arielmunitz.bsky.social · 03/03/2025
Preprint 📢📢 Epithelial cell-derived cytokines such as TSLP snd IL-33 likely have key roles in the initiation of allergic diseases. We show that despite co-upregulation/expression of IL-33 and TSLP in EoE, TSLP has a dominant role. www.biorxiv.org/content/10.1...
biorxiv.org
Distinct roles for thymic stromal lymphopoietin (TSLP) and IL-33 in experimental eosinophilic esophagitis
Rationale: Thymic stromal lymphopoietin (TSLP) and IL-33 are alarmins implicated in EoE pathogenesis by activating multiple cells including mast cells (MCs). Whether TSLP or IL-33 have a role in EoE a...
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Reposted by Shai Bel (The Mucus Man)
Waggoner Lab @labwaggoner.bsky.social · 02/03/2025
Distinct roles for TSLP and IL-33 in experimental eosinophilic esophagitis doi.org/10.1101/2025... @arielmunitz.bsky.social
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Oded Rechavi @odedrechavi.bsky.social · 01/03/2025
Friends! The science that we love is under threat. World-wide, there're forces seeking to make it corporate-like, focused on deliverables, or even the enemy of society. Take a stand & celebrate science & music! #theconferencetoendallconferences - Registration starts NOW! woodstock.img.cas.cz
woodstock.img.cas.cz
Woodstock.Bio2 + Night Science 2025 | Courses & Meetings
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Reposted by Shai Bel (The Mucus Man)
Dor Salomon @drdorsalomon.bsky.social · 28/02/2025
🚨Ready to be part of a pioneering microbiology lab that pushes the boundaries of scientific discovery? We have an **open postdoctoral position** in our lab, where we delve into the fascinating world of T6SS, effectors, mobile genetic elements, and everything in between! @erc.europa.eu -funded 🦠
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Reposted by Shai Bel (The Mucus Man)
Carolyn Bertozzi @carolynbertozzi.bskyverified.social · 26/02/2025
Happy to share this new #glycotime work with collaborator Tony Wyss-Coray, led by grad student Sophia Shi, mucin loss at the BBB is associated with aging and cognitive decline, can be reversed by restoration with with gene therapy. Aging is a mucinopathy! www.nature.com/articles/s41...
nature.com
Glycocalyx dysregulation impairs blood–brain barrier in ageing and disease - Nature
Disruption of mucin-domain glycoprotein expression and function in the endothelial glycocalyx are associated with ageing and Alzheimer’s disease, leading to dysregulated blood–brain barrier function.
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Shai Bel (The Mucus Man) @mucusman.bsky.social · 23/02/2025
I must say that as a bald human I never got those vibes from anybody
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Ran Blekhman @blekhman.bsky.social · 20/02/2025
These are challenging times for science, but I'm happy to share a bright moment: our work is on the cover of Cell today. We built a compendium of human gut microbiomes integrating 168K worldwide samples, revealing patterns of microbiome variation across the globe www.cell.com/cell/current...
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Tal Laviv @lavivtal.bsky.social · 20/02/2025
I started my lab more then 4 years ago, and we have endured some very challenging times ever since.…I am very excited to share the first paper from my lab, published now in @naturemethods.bsky.social www.nature.com/articles/s41...
nature.com
Genetically encoded biosensor for fluorescence lifetime imaging of PTEN dynamics in the intact brain - Nature Methods
A first-in-class fluorescence lifetime-based FRET sensor for phosphatase and tensin homolog (PTEN) enables the dynamic monitoring of PTEN activity in cultured cells and in vivo with high spatiotempora...
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Reposted by Shai Bel (The Mucus Man)
Olivia Coleman @ocoleman.bsky.social · 19/02/2025
It‘s been a pleasure to host @mucusman.bsky.social as a guest speaker for the CRC1371 #microbiomesignatures here at #TUM. Two days filled with productive and fun #gobletcell exchanges and a fantastic talk on #mucus #autphagy #erstress and #antibiotics. Thanks for making the trip Shai! #mucusmatters
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Rebecca Drummond 🍄 @therad-lab.bsky.social · 13/02/2025
Excited to announce a save the date for the upcoming Keystone Fungal Pathogenesis meeting! Jan 12-15 2026, mark your calendars! 🗓 Program and deadlines in link below #microsky #immunosky #KSFungalPath26 🧪 www.keystonesymposia.org/conferences/...
keystonesymposia.org
Fungal Pathogens: Emerging Threats and Future Challenges | Keystone Symposia
Join us at the Keystone Symposia on Fungal Pathogens: Emerging Threats and Future Challenges, January 2026, in Breckenridge, with field leaders!
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