What is the flu?

3D model of an influenza virus.

3D model of an influenza virus. (Photo credit: Wikipedia)

Since I published this post in my personal site I have received all kind of crazy questions about virus but, in special, about the HIV and the flu. So I have decided to use this educational video from the Khan Academy to share more viral knowledge to the world. This is a short introduction to the virus world but it is well explained so everybody can understand it. I hope this will resolve some of your doubts.

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