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.
This Week in Microbiology
Claim This Podcastby Vincent Racaniello
4.8(682 reviews)
356 episodes
Updated Weekly
Accepts GuestsHas SponsorsLocation 🇺🇸
84
Podcast Authority
BetaExcellentBased on show quality, social media presence, reviews, charts, and more
Quality92
Social0
YouTube93
Engagement99
Podcast Overview
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.
Language
🇺🇲
Publishing Since
2/23/2011
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84
Podcast Authority
BetaExcellentBased on show quality, social media presence, reviews, charts, and more
Quality92
Social0
YouTube93
Engagement99
11
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1
Good Performance
7
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excellent
Episode Length
56 minutes
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good
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7.2/10
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needs improvement
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Every 16 days
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Recent Episodes
May 9, 2026
355: Bacteria Complete Your tRNA
Vincent Racaniello, Michael Schmidt, and Michele Swanson interview Mark O. Martin about how bacteria complete their tRNA and the identification of a high-specificity transporter for essential micronutrients.
April 24, 2026
354: How a Gut Microbe Worsens Heart Disease
<p dir="ltr">TWiM explains a candidate signature of health in the gut microbial community, and how an intestinal bacterium exacerbates cardiac ischemia/reperfusion injury.</p> <p>Hosts: <a href="https://twitter.com/profvrr" target="_blank" rel="noopener">Vincent Racaniello</a>, <a href= "http://academicdepartments.musc.edu/immunology/Faculty/schmidt.html" target="_blank" rel="noopener">Michael Schmidt</a>, <a href= "https://experts.umich.edu/2682-michele-swanson" target="_blank" rel="noopener">Michele Swanson</a> and <a href= "https://biology.wustl.edu/people/petra-levin" target="_blank" rel= "noopener">Petra Levin</a>.</p> <p>Become a <a href="http://www.microbe.tv/contribute" target= "_blank" rel="noopener">patron</a> of TWiM.</p> <p>Music used on TWiM is composed and performed by <a href= "http://ronaldjenkees.com/" target="_blank" rel="noopener">Ronald Jenkees</a> and used with permission.</p> <h2><strong>Links for this episode</strong></h2> <ul> <li>A <a href= "https://www.cell.com/cell-host-microbe/fulltext/S1931-3128(26)00038-7?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS1931312826000387%3Fshowall%3Dtrue" target="_blank" rel="noopener">candidate signature of health in the gut microbiome</a> (Cell Host Microbe)</li> <li>204,938 <a href= "https://www.nature.com/articles/s41587-020-0603-3" target="_blank" rel="noopener">reference genomes from the human gut microbiome</a> (Nat Biotech)</li> <li>A <a href="https://pubmed.ncbi.nlm.nih.gov/41345261/" target= "_blank" rel="noopener">human gut metagenome-assembled genome catalogue</a> spanning 41 countries (Nat Micro)</li> <li>A comprehensive <a href= "https://pubmed.ncbi.nlm.nih.gov/41738843/" target="_blank" rel= "noopener">ruminant microbial catalog</a> (Gigascience)</li> <li><a href= "https://www.sciencedirect.com/science/article/abs/pii/S1931312826001204?via%3Dihub" target="_blank" rel="noopener">Bacteroides acidifaciens exacerbates cardiac ischemia/reperfusion</a> injury (Cell Host Microbe)</li> <li>The Great <a href= "https://www.nytimes.com/interactive/2026/04/15/opinion/glp1-health-effects.html" target="_blank" rel="noopener">Ozempic Experiment</a> (NY Times, paywall)</li> <li><a href="https://asm.org/twimpoll" target="_blank" rel= "noopener">Take the TWiM Listener surve</a><a href= "https://asm.org/twimpoll" target="_blank" rel= "noopener">y!</a></li> </ul> <p>Send your microbiology questions and comments (email or recorded audio) to <a href= "mailto:twim@microbe.tv">twim@microbe.tv</a></p>
April 11, 2026
353: Microbial Metabolism of Food Allergens
<p dir="ltr">TWiM explains how to use microbes to enhance maize yield and reduce corn rootworm damage, and how the human microbiota modulates IgE-mediated reactions to foods through allergen metabolism.</p> <p>Hosts: <a href= "http://academicdepartments.musc.edu/immunology/Faculty/schmidt.html" target="_blank" rel="noopener">Michael Schmidt</a>, <a href= "https://asm.org/biographies/petra-levin,-ph-d" target="_blank" rel="noopener">Petra Levin</a>, and <a href= "https://experts.umich.edu/2682-michele-swanson" target="_blank" rel="noopener">Michele Swanson</a>.</p> <p>Guest: <a href="https://asm.org/biographies/mark-o-martin" target="_blank" rel="noopener">Mark O. Martin</a></p> <p>Become a <a href="http://www.microbe.tv/contribute" target= "_blank" rel="noopener">patron</a> of TWiM.</p> <p>Music used on TWiM is composed and performed by <a href= "http://ronaldjenkees.com/" target="_blank" rel="noopener">Ronald Jenkees</a> and used with permission.</p> <h2><strong>Links for this episode</strong></h2> <ul> <li>Harnessing <a href= "https://apsjournals.apsnet.org/doi/10.1094/PBIOMES-09-25-0073-R" target="_blank" rel="noopener">Microbes for Crop Production</a> (Phytobiome J)</li> <li>Microbes take on <a href= "https://www.science.org/content/article/plant-vaccine-takes-corn-rootworm-fearsome-pest" target="_blank" rel="noopener">corn rootworm</a> (Science)</li> <li><a href= "https://www.sciencedirect.com/science/article/abs/pii/S1931312826000818?via%3Dihub#undfig1" target="_blank" rel="noopener">Microbial metabolism of food allergens</a> (Cell Host Microbe)</li> <li><a href="https://asm.org/twimpoll" target="_blank" rel= "noopener">Take the TWiM Listener surve</a><a href= "https://asm.org/twimpoll" target="_blank" rel= "noopener">y!</a></li> </ul> <p>Send your microbiology questions and comments (email or recorded audio) to <a href= "mailto:twim@microbe.tv">twim@microbe.tv</a></p>
356 total episodes available with 52 transcripts
Recent guests on This Week in Microbiology
Guests from recent episodes — sign up to see every guest that has ever appeared on this show.
Mark O Martin
Guest
Michael Schmidt
Guest
Petra Levin
Guest
Michele Swanson
Guest
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Frequently asked questions
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- What is This Week in Microbiology?
- How often does this podcast release new episodes?
This podcast updates weekly.
- Where can I listen to this podcast?
This podcast is available on 10 platforms including Apple Podcasts, Spotify, and more. You can also use the RSS feed directly.
- Does this podcast accept guests?
Yes, this podcast regularly features guests.
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