Author name: Vincent Racaniello

I'm Professor of Microbiology and Immunology at Columbia University in New York. I run a research lab where we study poliovirus, rhinovirus, and other RNA viruses. I also love teaching about viruses - check out virology.ws, microbe.tv, or iTunes University for some of my offerings. I want to be Earth's virology professor.

A case of prion disease acquired from contaminated beef

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Spongiform encephalopathies are neurodegenerative diseases caused by misfolding of normal cellular prion proteins. A 2014 case of variant Creutzfeldt-Jacob prion disease in the United States was probably caused by eating beef from animals with bovine spongiform encephalopathy (BSE), or mad cow disease. Human spongiform encephalopathies are placed into three groups: infectious, familial or genetic, and sporadic, distinguished by how the disease …

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TWiV #356: Got viruses?

This Week in Virology / By

On episode #356 of the science show This Week in Virology, Stephanie joins the super professors to discuss the gut virome of children with serious malnutrition, caterpillar genes acquired from parasitic wasps, and the effect of adding chemokines to a simian immunodeficiency virus DNA vaccine. You can find TWiV #356 at www.microbe.tv/twiv.

Wasps do a gain-of-function experiment in caterpillars

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Parasitic wasps (in the order Hymenoptera) inject their eggs into lepidopteran hosts, where the eggs go through their developmental stages. Along with the eggs, the wasps also deliver viruses carrying genes encoding proteins that inhibit caterpillar immune defenses. Some of these genes are permanently transferred to the lepidopteran host where they have assumed new defensive functions against other …

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TWiV 355: Baby’s first virome

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On episode #355 of the science show This Week in Virology, the TWiV team considers the effect of a Leishmaniavirus on the efficacy of drug treatment, and the human fecal virome and microbiome in twins during early infancy. You can find TWiV #355 at www.microbe.tv/twiv.

A virus in a parasite in a human

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The protozoan parasite Leishmania, transmitted to humans by the bite of a sandfly, may cause disfiguring skin lesions. A virus within the parasite appears to increase the risk of treatment failure with anti-leishmania drugs. A double-stranded RNA virus was found over 20 years ago to infect different species of Leishmania, with up to 50% of clinical isolates …

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TWiV 354: The cat in the HAART

This Week in Virology / By

On episode #354 of the science show This Week in Virology, the esteemed doctors of TWiV review a new giant virus recovered from the Siberian permafrost, why influenza virus gain of function experiments are valuable, and feline immunodeficiency virus. You can find TWiV #354 at www.microbe.tv/twiv.

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