This Week in Microbiology

Vincent Racaniello
This Week in Microbiology is a podcast about unseen life on Earth hosted by Vincent Racaniello and friends. Following in the path of his successful shows 'This Week in Virology' (TWiV) and 'This Week in Parasitism' (TWiP), Racaniello and guests produce an informal yet informative conversation about microbes which is accessible to everyone, no matter what their science background.

All Episodes

From ASM Microbe in Atlanta, Georgia, Arturo joins TWiM to reveal the threats that fungi pose to human health, including the notorious Candida auris and many more and how committed experts are researching ways to save us and our food supplies. Hosts: Michael Schmidt, Mark O. Martin Guest: Arturo Casadevall Watch this episode: https://youtu.be/nKJe5xNUocU Become a patron of TWiM. Links for this episode Disaster mycology (Biomedica) Emergence of C. auris (mBio) What if fungi win? (JHU Press) Thinking about Science: Good Science, Bad Science, and How to Make It Better (Amazon) Recorded at ASM Microbe 2024 in Atlanta, Georgia. Join us at the next ASM Microbe by visiting us at asm.org/microbe Matters Microbial Take the TWiM Listener survey! Music used on TWiM is composed and performed by Ronald Jenkees and used with permission. Send your microbiology questions and comments (email or recorded audio) to twim@microbe.tv

Jul 11

44 min 17 sec

TWiM explains a new mechanism for preventing lysogeny through temperate phage-antibiotic synergy, and Salmonella expansion in the murine gut dependency on aspartate derived from reactive oxygen species-mediated microbiota lysis. Hosts: Michael Schmidt, Petra Levin and Michele Swanson. Become a patron of TWiM. Links for this episode Temperate phage-antibiotic synergy (mBio) Salmonella expansion dependent on aspartate (Cell Host Micr) Arrowsmith by Sinclair Lewis (Wiki) A Genetic Switch by Mark Ptashne Lysis timing and bacteriophage fitness (Genetics) HK97 capsid assembly (Ad Exp Med Biol) Mode of action of fluoroquinolones (Drugs) Salmonella a foodborne pathogen (CDC) Freeman Hrabowski Scholars Program (HHMI) Sam Kaplan - 30 years of Microbiology (McGovern Medical School) Take the TWiM Listener survey! Send your microbiology questions and comments (email or recorded audio) to twim@microbe.tv

Jun 28

53 min 13 sec

TWiM explores how climate change may be increasing our risks to infectious disease and then how the Odyssey literally comes alive in our microbial world but fear not, unlike the Trojans, the bacteria are fighting back and have developed resistance to this novel class of newly developed antimicrobials.    Become a patron of TWiM. Links for this episode: Environmental changes fueling diseases (NY Times) Global change drivers and risk of infectious diseases (Nature) First reported cefiderocol-resistant E. coli in Canada (Clin Micro) E. coli cells explode (YouTube) Music used on TWiM is composed and performed by Ronald Jenkees and used with permission. Send your microbiology questions and comments to twim@microbe.tv

Jun 13

43 min 44 sec

TWiM explores the plasticity of the adult human small intestinal stoma microbiota, and survival and rapid resuscitation that permit limited productivity in desert microbial communities. Hosts: Vincent Racaniello, Michael Schmidt, Petra Levin and Michele Swanson. Subscribe to TWiM (free) on Apple Podcasts, Spotify, Android, RSS, or by email. Become a patron of TWiM. Links for this episode Plasticity of small intestinal stoma microbiome (Cell Host Micr) Desert microbial communities (Nat Comm) How soil microbes survive in the desert (Science Daily) Negev Desert (WikiCommons) Take the TWiM Listener survey! Send your microbiology questions and comments (email or recorded audio) to twim@microbe.tv

May 12

58 min 37 sec

Today on TWiM, a charcuterie invasion, and how that acid in your stomach may protect from the invading hordes of microbes. Hosts: Michael Schmidt, Petra Levin and Michele Swanson. Become a patron of TWiM. Links for this episode 2024 Salmonella outbreak linked to charcuterie meats  Multitier regulation of the E. coli extreme acid stress response by CsrA Commentary: Peeling the onion: additional layers of regulation in the acid stress response Take the TWiM Listener survey! Send your microbiology questions and comments (email or recorded audio) to twim@microbe.tv

Apr 26

45 min 34 sec

TWiM reviews a case of E. faecium bacteremia treated with combination bacteriophage and antibiotic therapy, and how dopamine receptor D2 confers colonization resistance via microbial metabolites. Hosts: Vincent Racaniello, Michael Schmidt, Petra Levin and Michele Swanson. Guest: Mark O. Martin Become a patron of TWiM. Links for this episode Matters Microbial Distinct Fusobacterium dominates colorectal cancer (Nature) Bacterial subspecies that might drive colon cancer (Nature) A bacterial strain linked to colon cancer (Nature) Spatial perspective on bacteria in tumors (Nature) Colorectal cancer in the young (Yale Med) Surface colonization by Flavobacterium johnsoniae promotes its survival (mBio) THOR, a model microbiome (mBio) Take the TWiM Listener survey! Send your microbiology questions and comments (email or recorded audio) to twim@microbe.tv

Apr 13

1 hr 7 min

TWiM reviews a case of E. faecium bacteremia treated with combination bacteriophage and antibiotic therapy, and how dopamine receptor D2 confers colonization resistance via microbial metabolites. Hosts: Vincent Racaniello, Michael Schmidt, Petra Levin and Michele Swanson. Subscribe to TWiM (free) on Apple Podcasts, Spotify, Android, RSS, or by email. Become a patron of TWiM. Links for this episode Vincent’s interviews at SXSW Bacteriophage and antibiotic therapy for E. faecium bacteremia (mBio) Dopamine receptor D2 confers colonization resistance (Nature) CDC’s Reports of Selected E. coli Outbreak Investigations Brett Finlay’s narrated EPEC animation Colonization resistance by gut microbial metabolome (ACS Chem Biol) Take the TWiM Listener survey! Send your microbiology questions and comments (email or recorded audio) to twim@microbe.tv

Mar 30

50 min 6 sec

TWiM discusses the identification of natural products from reconstructed ancient bacterial genomes, and how plant mRNAs move into a fungal pathogen via extracellular vesicles to reduce infection. Hosts: Vincent Racaniello, Michael Schmidt, and Petra Levin. Become a patron of TWiM. Links for this episode Natural products from ancient bacterial genomes (Science) Plant mRNAs move into fungal pathogens (Cell Host Microb) Take the TWiM Listener survey! Send your microbiology questions and comments (email or recorded audio) to twim@microbe.tv

Mar 15

52 min 44 sec

TWiM reviews the ongoing cholera outbreak in Africa, and research showing that gut complement induced by the microbiota blocks pathogens and spares commensal bacteria. Hosts: Vincent Racaniello, Michael Schmidt, Petra Levin and Michele Swanson. Become a patron of TWiM. Links for this episode Cholera in Southern Africa (Africa CDC) Deadly cholera outbreak in Africa (NY Times) Pediatric cholera in sub-Saharan Africa (Curr Op Ped) Gut complement spares commensals (Cell) Take the TWiM Listener survey! Send your microbiology questions and comments (email or recorded audio) to twim@microbe.tv

Mar 2

49 min 50 sec

TWiM reveals a new population in the blue cheese-making fungus Penicillium roqueforti and identification of a quorum-sensing autoinducer and siderophore in uropathogenic Escherichia coli. Subscribe to TWiM (free) on Apple Podcasts, Spotify, Google Podcasts, Android, RSS, or by email. Become a patron of TWiM. Links for this episode New blue cheese-making fungus (Evol Appl) Threat to Camenbert cheese (Guardian) French Cheese Under Threat (CNRS News) Fungadapt project (YouTube) Microbes Make the Cheese (ASM) Yersiniabactin in uropathogenic Escherichia coli (mBio) Public goods and cheating in microbes (Curr Biol) Take the TWiM Listener survey! Send your microbiology questions and comments (email or recorded audio) to twim@microbe.tv

Feb 17

57 min 33 sec

TWiM reveals a database of genome sequences of thousands of Mycobaterium tuberculosis, allowing association with resistance phenotypes to 13 antibiotics, and microbe-derived uremic solutes that enhance thrombosis potential in the host. Hosts: Vincent Racaniello, Michael Schmidt, and Michele Swanson. Become a patron of TWiM. Links for this episode M. tuberculosis genomes and antimicrobial resistance (PLoS Biol) The CRyPTIC consortium BashTheBug Zooniverse Microbial solutes enhance thrombosis (mBio) Can our microbiome break our heart? (mBio) Pathogenesis of cardiovascular disease (EJIFCC) How Kidneys Work Video (Mayo Clinic) What is a metaorganism? (Zoology) Take the TWiM Listener survey! Send your microbiology questions and comments (email or recorded audio) to twim@microbe.tv

Feb 3

56 min 31 sec

TWiM describes the mechanism for the S. aureus itch and scratch induced skin damage, and discovery of a novel class of antibiotics that targets the lipopolysaccharide transporter.   Become a patron of TWiM.   Links: S. aureus drives itch and scratch behavior (Cell) Staph scratches its itch (Cell) A new class of antibiotics (Nature) A new type of antibiotic (Nature) Novel antibiotic targets LPS transporter (Nature) New antibiotic traps LPS (Nature) Macrocyclic peptide drugs (Science) Music used on TWiM is composed and performed by Ronald Jenkees and used with permission. Send your microbiology questions and comments to twim@microbe.tv  

Jan 20

55 min 9 sec