Last year, we reported that arginine stimulates mucoidy in hypervirulent Klebsiella pneumoniae. Now we show an opposing cue, sugars! Here, we report that sugar import suppresses mucoidy. Full story in @natcomms.nature.com: www.nature.com/articles/s41... #microsky #klebclub See 🧵 for a summary:

Join me on Monday 7/20 to learn about understudied uropathogens. Details at the link below: Utiga.org/upcoming

UTI Global Alliance@globaluti.bsky.social · 2mo ago

Our next #UTIhour on understudied uropathogens is WEEK! 🦠 Our host Dr. @lauraamike.bsky.social has assembled a dream team of speakers. She herself is in the #KlebClub - she studies #Klebsiella at @Pittdeptofmed.bsky.social! 📅 7/20 1:30PM EDT / 1700 UTC 🔗 UTIGA.org/upcoming #UTIsky #IDSky

#SaveTheDate Following the success of the 1st #Klebsiella Epidemiology and Biology Symposium in Paris in 2024 #Klebs2024 KlebNET just announced the 2nd KLEBS meeting! 📅 November 17-19, 2027 🌍 Cape Town, South Africa @klebpapers.bsky.social #microsky #UTIsky #phagesky #AMR

Mark your calendars! @globaluti.bsky.social next UTI Hour is hosted by Dr. @lauraamike.bsky.social Theme: Non-UPEC uropathogens 📅 July 20th, 2026 🕜 1:30 New York Time With talks by: @bacterialtalk.bsky.social, Scott Bray (@katypatras.bsky.social lab), Kyle Buchan, & Katie Forster #UTISky #UTIHour

🚨 Final session alert! 🚨 Join us this Thursday for the last #KlebClub Virtual Seminar Series 2026 session! 🗓 April 30 ⏰ 9–10:30 AM EDT 🎤 Theme: KlebClub Community Flash Talks ✨Insights on #Klebsiella pneumoniae—from stress resistance and telomere #phages, phage defense to metabolism. #microsky

Our story on how #Klebsiella adapts on catheter-like surfaces is now out in @natcomms.nature.com! www.nature.com/articles/s41...

Rapid evolution of Klebsiella pneumoniae biofilms in vitro delineates adaptive changes selected during infection - Nature Communications

Biofilm formation on implanted medical devices facilitates infection by the pathogen Klebsiella pneumoniae. Here, Zaborskytė et al. use experimental evolution to show that the bacteria rapidly evolve ...

nature.com

TODAY!! Join us for Session 3 of #KlebClub2026 📅 April 23rd ⏰ 9:00–10:30 AM EDT 🔬 Theme: Translational Microbiology Hear from researchers bridging bench to bedside and explore innovative approaches to tackling Klebsiella pneumoniae. ✨ Free registration ->scan the QR code on poster

‼️ The 2nd session of #KlebClub2026 is tomorrow! This session will focus on pediatrics 🧸 — exploring the impact of Klebsiella infections in neonatal and pediatric populations, from clinical challenges to emerging research. 🗓 Thursday 16 🕘 9:00 -10:30 AM (EDT) (FREE registration) #microsky #AMR

Always great to catch up with former lab mates. ♥️

Melanie Pearson@proteusqueen.bsky.social · 5mo ago

Fills my heart to catch up with all my UTI colleagues, including this group of former Mobley Lab postdocs who now all run their own labs. @aeshealab.bsky.social @lauraamike.bsky.social @chelsamicro.bsky.social @globaluti.bsky.social #UTIconf26 #UTIsky

@microbiosaroj.bsky.social is presenting the short version of his dissertation project tomorrow! 🤓

Klebsiella Club@klebclub.bsky.social · 5mo ago

‼️ Excited to announce 1st session of #KlebClub2026! We kick things off with a session on pathogenesis, with *Jay Vornhagen* as keynote speaker, alongside 2 short talks selected from submitted abstracts - Sylvie MIQUEL & @microbiosaroj.bsky.social 🗓 Thursday 9 🕘 9:00 -10:30 AM (EDT) (1/2)

🚨 Big news! 🚨 Here the FINAL 2026 Speaker list for our seminar series!! ✨ Get ready for: • Pathogenesis session • Pediatrics #Klebsiella • Translational Microbiology • #KlebClub Community Flash talks! Starting April 9th - 9 AM EST! #KlebClub2026 #microsky #UTIsky #phagesky Registration is FREE

📢 Today is the day. Final call for abstract-selected speakers!

Klebsiella Club@klebclub.bsky.social · 7mo ago

Kind reminder: There is one week left to apply for a talk for the Klebsiella Seminar Series! Send your abstract by February 16th! & Register for free in the link below: forms.gle/LhJu11WQN6Yy... #MicroSky #UTISky #AMRSky #Agenda

📢 Our latest paper is now in @infectionimmunity.bsky.social We asked: How different are classical (cKp) vs hypervirulent (hvKp) Klebsiella pneumoniae bloodstream isolates if they are all the same K type (K2)? 📄 doi.org/10.1128/iai.... #KlebClub #MicroTwitter

journals.asm.org/doi/10.1128/... Proud to see our work published in mBio! We uncover how C3 and C4 provide layered immune protection against Klebsiella pneumoniae. Grateful for my incredible mentors Dr. Ammar Zafar @azmicro.bsky.social, Dr. Karen Haas and supportive colleagues.

Divergent roles for complement components C3 and C4 in controlling Klebsiella pneumoniae gut colonization and systemic dissemination | mBio

Klebsiella pneumoniae, a major public health threat, resists antibiotics and can spread from the gut to the bloodstream, causing severe infections. Our study reveals how the immune system uses complement proteins C3 and C4 to block this spread. C3 limits bacterial growth in the gut through two potential mechanisms: (i) coating K. pneumoniae with fragments that signal bacteria-eating phagocytic cells to destroy it and (ii) recruiting more phagocytes into the gut. C3 also helps clear bacteria that escape into the blood. However, when antibiotic-resistant strains overgrow, C3 alone is insufficient. In these cases, C4 becomes critical, likely by enhancing C3’s ability to tag bacteria for elimination. This two-layered defense highlights new immune pathways that could be targeted to prevent bloodstream infections, especially in vulnerable patients or those colonized with drug-resistant bacteria. These insights open doors to innovative strategies against life-threatening Klebsiella infections.

journals.asm.org

🌟 Applications are accepted for UC San Diego RAPID program's 2026-27 cohort. This highly-rated and effective #FacultyDevelopment opportunity is for junior faculty researchers in #InfectiousDiseases. 👉 Learn more and apply today at rapid.ucsd.edu. ⏰ Deadline: Sunday, March 1 #UCSD_RAPID

✨If you have a story you would like to share with the community, please submit an abstract by Feb 16. ✨

Klebsiella Club@klebclub.bsky.social · 7mo ago

Kind reminder: There is one week left to apply for a talk for the Klebsiella Seminar Series! Send your abstract by February 16th! & Register for free in the link below: forms.gle/LhJu11WQN6Yy... #MicroSky #UTISky #AMRSky #Agenda

3 weeks left to submit an abstract for the Klebsiella Seminar Series! It is FREE, but registration is required. #AMR #Microsky #UTIsky sites.google.com/view/klebclu...

KlebClub - Seminar Series Registration

Klebsiella Virtual Seminar Series

sites.google.com

Klebsiella Club@klebclub.bsky.social · 8mo ago

We’re excited to kick off a new season of the Klebsiella Seminar Series, held on Thursdays in April 🧫🧬! We have 3 sessions on pathogenesis, pediatric Klebsiella & translational approaches. We will also have an open session. Registration is mandatory & FREE in this link forms.gle/LhJu11WQN6Yy... 🔁

If you have any interest in Klebsiella, registration for the April seminar series is open. Abstract submission for short talks are due Feb 16. Looking forward to connecting this spring! #klebclub2026

Klebsiella Club@klebclub.bsky.social · 8mo ago

We’re excited to kick off a new season of the Klebsiella Seminar Series, held on Thursdays in April 🧫🧬! We have 3 sessions on pathogenesis, pediatric Klebsiella & translational approaches. We will also have an open session. Registration is mandatory & FREE in this link forms.gle/LhJu11WQN6Yy... 🔁

Hard to believe it’s already that time of year! Our kick-off meeting for the Klebsiella Seminar Series just wrapped up. Stay tuned for more! @lauraamike.bsky.social @olayarendueles.bsky.social @caityholmes.bsky.social @tomstantonmicro.bsky.social @juanvalenciabacca.bsky.social WenWen Low & Jay V.

Applications for UC San Diego RAPID program's 2026-27 cohort are now open! This highly-rated and effective career development opportunity is for junior faculty researchers in #InfectiousDiseases. Learn more and apply today at rapid.ucsd.edu! #UCSD_RAPID #FacultyDevelopment

Come join us in Knoxville! The Dept. of Microbiology 🧫🦠 at the University of Tennessee is hiring 2 Assistant Professors (tenure track, 9-month appt.). Microbial Drivers of Chronic Disease: apply.interfolio.com/173153Quantitative Microbe-Plant-Environment Interactions: apply.interfolio.com/173345

Delighted that Pitt and the Jonas Salk team were recognized for its development of the polio vaccine with a @asm.org Milestones in Microbiology site! It was my true honor to present this award last Friday on World Polio Day. Onwards towards eradication! asm.org/press-releas...

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)

Check out @julielebris.bsky.social’s thread on our latest manuscript describing phenotypic heterogeneity in capsule production in Klebsiella & Acinetobacter @klebclub.bsky.social This work started when I was still in @pasteur.fr & got finished in @cbitoulouse.bsky.social #microsky #phagesky

Julie Le Bris@julielebris.bsky.social · 12mo ago

Delighted to share our recently published work! Ever wondered how Klebsiella (and others) deals with capsule production’s costs ? The paper: journals.asm.org/doi/10.1128/... Thread👇

Daisy is a healthy pup, but she's still pawsitively devoted to supporting animals' urinary health ❤️🐶 That's why our #UTIhour on October 14th (12EDT) is on veterinary #UTI! Do you have a furry friend who supports urinary health? Post a photo and tag us or send it here to post

New publication from our lab, featuring Dr. Santosh Paudel’s work offers a refined cost-effective approach to study bacterial growth rates during infection @globaluti.bsky.social #UTIsky

Microbiology professor, want to join a slack for microbiology professors, any career stage, diverse career types (pure teaching, med school, R1, community college, pure research fed PIs, ...) Message me for an invite link if you are interested. No imposter syndrome, if you are 1% micro, join!

Congratulations to 2025 GRC Microbial Adhesion and Signal Transduction Poster Award Winners!! 🎆🥂🙌 Thank you @cp-cell.bsky.social and @femsmicro.org for sponsoring! From, Your secret judges 🤫

Tenure-track faculty search of the UCSF Biochemistry & Biophysics Department is open for applications! We are looking for creative, innovative scientists asking fundamental questions in any area of biology. Join our vibrant, collaborative, and supportive community! aprecruit.ucsf.edu/JPF05702

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...