The Origin of Viruses
CrowdScience
00:00
Viruses Are All Over the World
Most of the viruses that we are now discovering are not really associated with any known disease or pathology. So i think, yes, it's alarming that they're everywhere, but they're probably mostly harmless. The world health organization says the number of people in china who have caught the flue, like illness or acute respiratory sintram, is rising rapidly. Concerns growing about the bars, which has now spread into four west african countries and has, it's believed, killed some 730 people.
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