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Bornavirus DNA in the mammalian genome

The chromosomal DNA of several mammals has been found to contain sequences related to the nucleoprotein (N) gene of bornaviruses, enveloped viruses with a negative-strand RNA genome. I am amazed by this finding. How did bornaviral DNA get in our chromosomes, and what is it doing there? Read More

Through the Looking Glass: Silicate in Bacterial Spores

Peter Setlow, Professor of Molecular, Microbial and Structural Biology at the University of Connecticut Health Center in Farmington, CT, authors a guest post on Small Things Considered in which he ponders the reasons why silicon is present on some Bacillus spores and what could possibly be the b... Read More

The Origin of Species: 1859 meets 2009 - Video Lecture by Carl Zimmer

Science writer Carl Zimmer and host of MicrobeWorld's Meet the Scientist Podcast presents a talk in Vancouver BC hosted by the Beaty Biodiversity Museum at the University of British Columbia. Zimmer discusses Darwin and the evolution of diseases, including H1N1.

The talk was posted in six par... Read More

TWiV 65: Matt's bats

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On episode #65 of the podcast This Week in Virology, Vincent, Alan, and Matthew Frieman ... Read More

It Came From Outer Space: Hyperthermophiles

Hyperthermophiles are microorganisms that can live in extremely hot conditions. Instead of photosynthesis, these organisms perform chemosynthesis to produce energy. Click "source" above to watch the Learning Channel's "It Came From Outer Space: Hyperthermophiles". Read More

TWiP 4 letters

Rich writes:


Here is a composite of 384 electron microscope photographs, combined into one image so that you can zoom and pan:



http://gigapan.org/gigapans/27625/ Read More

TWiP 3 letters

Björn writes: (first letter to TWiP)


Hi Dick and Vincent,



My name is Björn. I am a biochemist and PhD student working on trypanosomes here in Germany. I am a long time listener of your twiv podcast and just listened to the first  Read More

XMRV not detected in UK chronic fatigue syndrome patients

A new retrovirus, xenotropic murine leukaemia virus-related virus (XMRV), first identified in tumor tissue of individuals with prostate cancer, was subsequently found in 68 of 101 US patients with chronic fatigue syndrome (CFS). This observation raised the possibility that XMRV is the etiologic ... Read More

Mundo de los Microbios - Episodio 35

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A la búsqueda de los patógenos de los cultivos


Algunos temen que los terroristas fijen su objetivo en los alimentos e infecten deliberadamente cultivos tales como ... Read More

The Immortal Life of Henrietta Lacks

Shortly after I wrote about my years of experience with HeLa cells, I was contacted by author Rebecca Skloot. One of her many questions was how I knew that I had produced 800 billion HeLa cells in my laboratory over 26 years. I learned that she was writing a book about Henrietta Lacks, whose tum... Read More

MTS41 - Sallie Chisholm - Harvesting the Sun

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Is bivalent poliovirus vaccine a good idea?

A new bivalent poliovirus vaccine, consisting of infectious, attenuated type 1 and type 3 strains, has been deployed in Afghanistan. The use of this vaccine was recommended by the Advisory Committee on Poliomyelitis Eradication, the global technical advisory body of the Global Polio Eradication ... Read More

TWiV 64: Ten virology stories of 2009

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On episode #64 of the podcast This Week in Virology, Vincent, Alan, and Rich discuss ten compelling virology stories of 2009.


Host links Read More

DIY Science - Jason Bobe of DIYbio speaks on NPR

The "Do It Yourself" biology movement is growing among real scientists and citizen scientists in homegrown or garage-based labs around the U.S. As this NPR piece reports "they're studying things like DNA and E. coli bacteria in home laboratories. And for now, the industry is largely unregulated.... Read More

H1N1 pediatric fatalities were 10 times the rates for seasonal influenza in previous years

A recent paper published in the New England Journal of Medicine by researchers who looked at data from the recent influenza season in the Southern Hemisphere finds that pandemic 2009 H1N1 influenza was associated with pediatric death rates that were 10 times the rates for seasonal influenza in p... Read More

TWiP 3: Trichinella spiralis

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Vincent and Dick distinguish among intracellular and extracellular parasites, then discuss the history and general characteristics of Trichinella spiralis.


Download  Read More

Marine Euglena-like Protist at 1000x Magnification

Marine Euglena-like Protist at 1000x Magnification. Euglena is a common group of freshwater single celled organisms in the Kingdom Protista. Read More

Motility mechanism of malaria pathogens explained

How do one-celled parasites move from the salivary gland of a mosquito through a person's skin into red blood cells? What molecular mechanisms form the basis for this very important movement of the protozoa? A team of researchers headed by Dr. Friedrich Frischknecht, head of a research group at ... Read More

The Dawn of Proteomics

Frederick C. Neidhardt, F.G. Novy Distinguished University Professor, Emeritus, Department of Microbiology and Immunology, University of Michigan Medical School at Ann Arbor, authors a post at the Small Things Considered blog on the dawn of proteomics, the large-scale study of proteins, with a f... Read More

MTS40 - John Wooley - Exploring the Protein Universe

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