The virus is a non-cellular organism composed of proteins and nucleic acids. How many viruses do you know? Officially, over 10,400 types of viruses have been described. Some viruses are harmless to humans and some can be fatal. Do you know which viruses are spreading the fastest? See below infographics from NY Requirements. It shows the fastest spreading viruses in world history. A total of 26 viruses have been compared, which have spread to the largest number of people.

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