El Ajolote

4 Mar 2014
El Ajolote | Por: Redacción

Resucitan un virus de 30 mil aAi??os

Fuente: BBC

Un antiguo virus fue hallado congelado en una capa profunda del permahielo siberiano, que tras descongelarse se convirtiA? en infeccioso otra vez. Los investigadores dicen que no hay peligro de contagio en humanos y animales, pero otros virus podrAi??an liberarse si se reduce el hielo que cubre el suelo.

El estudio fue publicado en la revista especializada Proceedings of the National Academy of SciencesAi??(PNAS), de la Academia Nacional de Ciencias de Estados Unidos. “Esta es la primera vez que vemos un virus que aA?n es infeccioso despuAi??s de tanto tiempo”, dijo Jean-Michel Claverie, del Centro Nacional de InvestigaciA?n CientAi??fica (CNRS) en la Universidad de Aix-Marsella, en Francia.

El antiguo patA?geno fue descubierto enterrado a 30 metros de profundidad en el suelo congelado de Siberia. Recibe el nombre deAi??Pithovirus sibericum y pertenece a una clase de virus gigantes que fueron descubiertos hace diez aAi??os. El virus afecta a amebas pero no ataca cAi??lulas humanas o animales. Son tan grandes que, a diferencia de otros virus, pueden ser vistos con un microscopio. Y este, que mide 1.5 micrA?metros de largo, es el mA?s grande jamA?s hallado.

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