On episode #248 of the science show This Week in Virology, Vincent, Dickson, and Rich reveal how experiments with a malaria parasite lead to the introduction of a mammalian retrovirus into birds. You can find TWiV #248 at www.microbe.tv/twiv.

Reticuloendotheliosis viruses (REVs) are retroviruses that cause a rare disease of gamebirds and waterfowl that includes anemia, immunosuppression, neoplasia, runting, and abnormal feathering. Since the first isolation of REV from a turkey in 1957, REVs were believed to be strictly avian viruses. It now appears that REVs are mammalian viruses ...

On episode #247 of the science show This Week in Virology, Ian Lipkin joins Vincent, Alan, Rich, and Kathy to describe how his laboratory is searching for the origin of MERS-coronavirus. You can find TWiV #247 at www.microbe.tv/twiv.

What is wrong with this paragraph from today's New York Times that describes the origin of the Middle East Respiratory Syndrome (MERS) coronavirus: Health officials confirmed Wednesday that bats in Saudi Arabia were the source of the mysterious virus that has sickened 96 people in the Middle East, killing 47 ...

Discutiremos acerca de los procesos y las enzimas que participan en la síntesis de RNA a partir de templados de RNA y como la síntesis de RNA se utiliza para maximizar la capacidad codificante del genoma viral.