Are RNA or DNA viruses worse? Short fast 1 minute answer

Viruses as complex forms of life are a big threat for social health and can make a big pandemic like COVID19.

RNA viruses generally have very high mutation rates compared to DNA viruses, because viral RNA polymerases lack the proofreading ability of DNA polymerases. The genetic diversity of RNA viruses is one reason why it is difficult to make effective vaccines against them.

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