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Colonial Variation in Serratia marcescens

A common denizen of the undergraduate microbiology laboratory, Serratia marcescens is well known for the production of a bright red pigment, prodigiosin. Prodigiosin has been investigated over many years for its possible antimicrobial, antifungal, and even antitumor effects. Still, the relevan... Read More

Colors of Superbug !

Methicillin Resistant Staphylococcus aureus (MRSA) isolated from animals. The organism was grown on seven different agar medium. On blood agar (Centre), it forms small to medium sized colonies surrounded by weak beta-hemolysis. It shows diverse types of color in different chromogenic medium- pin... Read More

TWiM #113: Waves of Change

Host: Vincent Racaniello

Special guests: Romney Humphries and Read More

HIV cure research: NIH scientists create 2-headed protein to deplete HIV reservoir

Scientists at the National Institutes of Health (NIH) have created a protein that awakens resting immune cells infected with HIV and facilitates their destruction in laboratory studies. The protein potentially could contribute to a cure for HIV infection by helping deplete the reservoir of long-... Read More

BacterioFiles 234 - Phone, Floor Phylum Forensics

This episode: Learning things about people's identity and movements from microbial communities on their phones and shoes!

(5.4 MB, 5.8 minutes)

Show notes: 
Read More

TWiV 359: A Blossom by any other name

Host: Vincent Racaniello

Guest: Blossom Damania

Vincent speaks with Blossom about he... Read More

TWiP 97 letters

Jerry writes:


Nancy writes:

I mean, Scabies?
I hope the gentleman contracted them via a freshly contaminated, unlaundered hand towel.

Thank you for all you do, guys.


Steve writes... Read More

TWiP 97: The seven year itch

The paratenic hosts reveal a case of scabies in the Traveling Salesman, and discuss a role for natural antibody in protection from infection with Plasmodium.

Hosts:  Read More

The #LuxArt2015 Art Competition By My Students!

Because of all the recent interest in "microbiological art," I decided to challenge my Biology 350 students to "paint" using luminous bacteria. We have a balloting process, tallied the results, and made some appropriate awards! I think the world of my students, and I hope you enjoy this view i... Read More

MdlM114: ASM ¡En Vivo! desde Nueva Orleans

La Microbiología en España, la metagenómica y patógenos emergentes, son tres temas a ser discutidos hoy en La Radio el Mundo de los Microbios.  Este episodio es una grabación hecha durante la Conferencia General de la Sociedad Americana para la Microbiología en Nueva Orleans, Louisiana e... Read More

Viruses Could Help Fight Deadly Superbugs.

Viruses that are harmless to humans might help fight the deadly scourge of bacteria that can't be treated with antibiotics, researchers say.

These viruses could be used in hand santizers, and to treat exposed surfaces in hospitals, which are hotbeds of antibiotic resistance, the researchers n... Read More

BacterioFiles 233 - Messy Microbes Maintain Mouse Microbiota

This episode: Mice in less sanitary conditions have more diverse gut communities and perhaps less allergy!

(8.15 MB, 8.8 minutes)

Show notes: 
Read More

TWiV 358: Virology and proteomics with Ileana Cristea

Host: Vincent Racaniello

Guest: Ileana Cristea

Vincent meets up with Ileana at Princeton University to talk abou... Read More

Prion contamination in the emergency room

Here is a follow-up to last week’s article that described a case of variant Creutzfeldt-Jacob disease in a Texas resident caused by ingestion of BSE-contaminated beef 14 years ago.

A 59 year old male patient was admitted to the trauma unit in Lancaster, PA with a self-inflicted gunshot wound ... Read More

Broad-spectrum antimicrobials: Considering ‘Holobiont’ welfare

The discovery of antibiotics (also referred to as antimicrobials) is perhaps the most revolutionary outcome in the medical sciences during the twentieth century, and has allowed medical practitioners to treat a wide range of bacterial infections; and therefore, antimicrobials are the most common... Read More

BacterioFiles 232 - Exploring Enzymes' Element Effects

This episode: Bacteria can convert soluble uranium to an insoluble form, and distinguish between different isotopes!

(8.2 MB, 8.9 minutes)

Show notes: 
Read More

What Should First Year Students Learn About Microbiology?

Many institutions, such as my own, only have one microbiology course. In this second "Mu-Tube" video, I ask my current junior and senior Microbiology students what *they* think first year students ought to know about #MattersMicrobial. I think their opinions are interesting, and will inform my... Read More

TWiV 357: Mistletoe and the Tree of Life

Hosts: Vincent RacanielloDickson DespommierAlan Dove Read More

TWiP 96: Salivary pharmacopeia

The TWiPanosomes solve the case about the Young Woman who Went to Belize, and relate how sandfly saliva skews the immune response and increases risk of cutaneous leishmaniasis.

Hosts:  Read More

TWiP 96 letters

 Ella writes:

Long time listener, first time email.

I am surprised that no one got the diarrhea case, although I would have been wrong as well, so many familiar parasites!

I was diagnosed with Blastocystis hominus in 1990 when I came ... Read More

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