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Ch. 19 - Viruses
All textbooksCampbell 12th EditionCh. 19 - VirusesProblem 2
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Chapter 19, Problem 2

Emerging viruses arise by a. mutation of existing viruses. b. the spread of existing viruses to new host species. c. the spread of existing viruses more widely within their host species. d. all of the above.

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Hello everyone here. We have a question that says all of the following are the factors responsible for the origin of emerging viruses except a mutations and existing viruses, mutation and existing viruses will lead to new viruses. So A. Is incorrect. Be spread of existing viruses to new hosts that also creates new viruses. So B. Is incorrect C spread of existing viruses with their host species. This leads to new viruses. So C. Is incorrect. The development of antibiotic resistance and existing viruses. All viruses are already antibiotic resistance so that is not going to lead to any new viruses. So D. Is correct. Development of antibiotic resistance in existing viruses is not responsible for the origin of emerging viruses. Thank you for watching. Bye.
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