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Describe two ways that a preexisting virus can become an emerging virus
Chapter 19, Problem 1(choose chapter or problem)
QUESTION:
Describe two ways that a preexisting virus can become an emerging virus.
Questions & Answers
QUESTION:
Describe two ways that a preexisting virus can become an emerging virus.
ANSWER:1. Antigenic drift – over time, the virus mutates to become more infective, and can spread to more hosts and cause