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 Lock answer options against randomisation

Question

Quizplus · Accepted Answer

Emerging viruses can arise through any of the mentioned ways, i.e., mutation, spread to new host species, or spread more widely within their current host species. Often, a combination of these factors may contribute to the emergence of a new virus. Therefore, option D, i.e., all of the above, is the best choice.

Emerging Viruses Arise by