This Week in Microbiology artwork

Life Sciences · Vincent Racaniello

This Week in Microbiology

by 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.

Chart trend

Position in the Life Sciences chart (US), last 90 days.

#10
all-time peak
1
day in the top 10 since Nov 2024

Latest episodes

Showing 20 · updated from the feed

362: When Gut Bacteria Share Chromosomes

TWiM explains how movement of DNA among gut bacteria drive large-scale genome mosaicism, and validation of a method for detection of Cyclospora cayetanensis in outbreak-l

Aug 29
51 min

361: Bacteria and Colon Cancer Recurrence

TWiM explains the discovery of an avirulent bacterial signature associated with the development of recurrence following colorectal cancer surgery, and phage-derived prote

Aug 14
53 min

360: Nitrogen Fixation Goes Eukaryotic

TWiM explains major implications of the link between plastic pollution and antimicrobial resistance, and the discovery of a new organelle, the nitrogen-fixing nitroplast.

Jul 31
56 min

359: Kin Killing and Metal Hunger

TWiM explains how cannibalism shapes biofilm structure and composition in Bacillus subtilis, and the importance of manganese uptake in uropathogenic E. coli during urinar

Jul 18
48 min

358: Gut Microbes and ALS

TWiM explains the connection between inflammation caused by microbial glycogen in the gut and amyotrophic lateral sclerosis, and how disruption of cysteine metabolism lea

Jul 4
58 min

357: Remembering Elio at Tufts

TWiM visits Tufts University School of Medcine and are joined by John Coffin, Michael Malamy, and Verna Manni for a tribute to Elio Schaechter who was chair of Molecular

Jun 15
55 min

TWiM 356: Nanopore to the bone

TWiM explains how Streptococcus mitis bacteriocins drive contact-dependent lysis of S. pneumoniae facilitating transformation, and microbial dominance in diabetic foot os

May 28
49 min

355: Bacteria Complete Your tRNA

TWiM explains how an enhanced domestication method allows for growth of uncultured bacteria, and identification of the oncogene SLC35F2 as is a high-specificity transport

May 9
56 min

354: How a Gut Microbe Worsens Heart Disease

TWiM explains a candidate signature of health in the gut microbial community, and how an intestinal bacterium exacerbates cardiac ischemia/reperfusion injury. Hosts: Vi

Apr 24
59 min

353: Microbial Metabolism of Food Allergens

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 a

Apr 11
46 min

352: Microbial Gut Biosensors

TWiM reveals the archaeal roots of eukaryotic life, and a building a gut malabsorption biosensor with bacteria. Become a patron of TWiM. Music used on TWiM is compose

Mar 28
59 min

351: Resistance Reboot

TWiM discusses the use of bacteriophage-loaded microneedle patches for targeted and minimally disruptive foodborne pathogen decontamination, and a conjugal gene drive-lik

Mar 6
59 min

350: TWiM Goes to College

Nancy and Maggie join TWiM to share how and why they created a freely available ebook of TWiM-based science literacy resources and classroom exercises that support teachi

Feb 14
53 min

349: Punctured to Death by Spikes

TWiM explains how mechano-bactericidal surfaces made from diverse materials and patterned with spikes kill bacteria on contact, and virus-host evolution is reshaped by mi

Feb 1
58 min

348: The Bark Side of the Microbiome

TWiM explains the finding that owning a dog during adolescence alters the microbiota and improves mental health, and the molecular basis for multidrug efflux by an anaero

Jan 21
53 min

347: At Wound's Edge

TWiM explains how S. aureus pathogenicity is a dynamic, niche-specific choreography that constantly recalibrates in response to the host microenvironment, and short chain

Jan 5
55 min

346: Metabolism and Porin Permeability

TWiM explains how competition for nutrients anticipates and potentially mitigate drug side effects on the gut microbiota, and metabolic control of porin permeability infl

Dec 13 2025
53 min

345: Faster Than Rocks!

TWiM explains a biological mechanism that links sulfur and iron cycling in anoxic environments, and "swashing," a form of surface movement in which bacteria migrate witho

Nov 22 2025
53 min

344: Ant Yogurt and Fine Chocolate

TWiM reveals the bacteria, acids, and enzymes behind yogurt made with ants, and a defined set of microbes that reproduces attributes of fine flavor chocolate fermentation

Nov 8 2025
1 h 06 min

343: Nucleotides to the Defense

TWiM explores two different ways that bacteria defend against phages through the synthesis of cyclic nucleotides. Hosts:  Michael Schmidt and Mark O. Martin   Bec

Oct 25 2025
43 min

Chart positions

Where This Week in Microbiology ranks today in each Apple Podcasts chart (US, Sep 9, 2026).

#42 ▼ 9 Life Sciences US

What listeners say

A curated, balanced selection of Apple Podcasts reviews.

I’m a high schooler who hasn’t really had the chance to make any microbiology classes, but this makes me want to go into the field. Comprehensive enough that you don’t have to be a microbiologist or have some fancy degree to understand what they’re talking about, but they don’t dumb it down which is nice. Great podcast!

EvelynDevelyn · May 2022

I love this podcast and have been listening for years. I appreciate the vast scope of microbiology that is covered as well as the integration of current events. Each one of the hosts makes you feel like you know them personally. My first ASM-Microbe conference was in Atlanta a couple of years ago and admit that I was a complete fan girl when I got a seat during the the TWIM live taping.

in_log_phase · Aug 2020

Educational and they are clearly having a good time. Gets me more info out of these articles than I ever could on my own

chemimen · Jul 2019

Without dumbing down, or being patronizing to non-microbiologists, this podcast manages to educate and inform.

Music Lover 555 · Mar 2019

We strive to present a balanced view by showing a diverse range of reviews from Apple Podcasts.

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Here you find the Apple Podcasts chart positions of This Week in Microbiology, its latest episodes to listen to directly, and reviews from listeners. Rankings are updated daily for the United States.

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