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TWiM #127: Subway Snowblowers and Men in Black

The TWiM team explores microbes in snowblower vents on the ocean floor, and cleavage of antibody molecules by a Mycoplasma protease.


Image (right): Photograph of the ‘Subway’ snowblower vent on the sea floor at Axial Seamount, Juan de Fuca Ridge. Visible are white ‘snow’ in the vent a... Read More

Magic in Solution: An Introduction and Brief History of PCR

If you missed the opportunity to hear Carl Wittwer talk about the history of PCR and his invention of the LightCycler, the video is now available on line.

The polymerase chain reaction (PCR) has become a fundamental tool in molecular research and clinical testing. Our presenter, Carl Witter, ... Read More

Video Presentations from Princeton's 2009 Spring Biosecurity Seminar Lectures

Here's a collection of presentations from Princeton's 2009 Spring Biosecurity Seminar Lectures. Presentations include:


Feb. 20 - George Hughes Senior Advisor, Counterterrorism and Intelligence FDA Office of Criminal Investigations
Title: " Read More

Prof. Racaniello's Viral Vaccines and the Principles of Immunization (Lecture)

Below is a lecture by Vincent Racaniello, Professor of Microbiology at Columbia University Medical Center and host of the popular This Week in Virology podcast, he presented on viral vaccines for the Immunology course at the Morningside Heights campus of Columbia University. Racaniello uses poli... Read More

TWiV 269: Herpesvirus stops a nuclear attack

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Hosts: Vincent Racaniello, Dickson Despommier Read More

TWiM #128: A moonlighting phage protein

A eukaryote without a mitochondrion, and using a phage enzyme to eliminate intracellular bacteria are two topics discussed by the TWiMers on this episode.


Image (right): An entry in the ASM Agar Art Contest which bears an uncanny resemblance to one of the TWiM hosts.


Host... Read More

TWiV 363: Eat flu and dyad

Hosts: Vincent RacanielloAlan Dove Read More

TWiP 104: La maladie du sommeil

Michael returns to help the TWiP trio solve the case of the Delusional African Expatriate, who then discuss the association of natural and induced antibodies in mice with differential susceptibility to secondary cystic echinococcosis.


Hosts:  Read More

TWiP 56 letters

Suzanne writes:


Your discussion about technology and fixing things here before we go out into space made me wonder if space exploration might turn out to be like investigative science. In the process of exploring space we might run across the means of fixing our probl... Read More

BacterioFiles Micro Edition 72 - Microbes Manipulate Mosquito Messages

This episode: Bacteria on your skin affect your attractiveness to mosquitoes!



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Read More

TWiP 52 Letters

Jason writes:


Hi Drs. Despommier and Racaniello,


This week you wondered why the immune-activating receptor for Toxoplasma gondii, TLR11, is present in mice but not in humans. You noted that it looks like there's no selective pressure keeping it around in us an... Read More

Grow Your Own Oyster Mushrooms Classroom Experiment

The UK's National Center for Biology Eduction has an interesting experiment involving toilet paper, hot water and oyster mushroom starter culture.

"Gastronomes will no doubt be aware of the presence of an increasing range of exotic mushrooms on the supermarket shelves. In the Far East, oyster... Read More

An RNA virus that infects Archaea?

Every different life form on earth can probably be infected with at least one type of virus, if not many more. Most of these viruses have not yet been discovered: just over 2,000 viral species are recognized. While the majority of the known viruses infect bacteria and eukaryotes, there are only ... Read More

TWiV 373: The distinguished virology career of Julius S. Youngner

 


Host: Vincent Racaniello 


Guest: Julius S. Youngner


Vincent... Read More

Viral bioinformatics: Dotplot

Dotplots are an extremely useful way of visualizing comparisons of small and large DNA sequences (as well as protein sequences), providing insight into the degree of similarity, deletions, insertions and direct and indirect repeats. In a dotplot, each nucleotide, or small window of nucleotides, ... Read More

TWiV 75: Rabies rampant

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On episode #75 of the podcast This Week in Virology, Vincent, Alan, and Matt review contamination of Rotarix with circovirus DNA, antigenic similarity between 1918 and 2009 H1N1 influenza, a ... Read More

TWiV 230: Gene goes to Washington, flu chickens out

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Hosts: Vincent Racaniello, Rich Condit, Read More

TWiV 236: Flu gets the VIP treatment

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Hosts: Vincent Racaniello, Alan Dove, and Read More

The Acid Fast Stain

Here's a movie from the University of Madison-Wisconsin depicting the steps for creating an acid fast stain.















Read More

TWiP 85 letters

 


Jan writes:


Dear Sirs


This is fun, and although I'm sure someone will gripe about Dicksons enthusiastic response to the crayfish, it made my life easier. I think it's Paragonimus kellicoti. As for eating raw crayfish; how drunk... Read More

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