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Viruses are successful because
a) They use the DNA of their infected host to replicate themselves.
b) They mutate (change) their basic characteristics to avoid being irradicated by either the host's immune system or antiviral agents.
c) Many viruses are quite hardy and able to live in a dormant state until a suitable host is found, at which time they replicate quickly, are discharged by the host's cells, and are then available to infect other suitable hosts.
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What is a Virology?
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pathogens
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What are the names of some successful real estate agents in Brea California?
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