Multiple Choice
Which of the following is NOT used as a criterion to classify viruses?
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1. Introduction to Microbiology
Acellular Infectious Agents: Viruses, Viroids & Prions
Multiple Choice
Emerging viruses that infect human cells can originate from which of the following sources?
A
Mineral deposits
B
Synthetic chemicals
C
Atmospheric gases
D
Animal reservoirs
Verified step by step guidance1
Understand the concept of emerging viruses: these are viruses that have recently appeared in a population or are rapidly increasing in incidence or geographic range.
Recognize that emerging viruses often originate from sources that allow them to jump from one species to humans, a process known as zoonosis.
Evaluate the given options: mineral deposits, synthetic chemicals, and atmospheric gases are non-living and do not serve as hosts or reservoirs for viruses.
Identify that animal reservoirs are living hosts where viruses can persist and evolve before infecting humans, making them a common source of emerging viruses.
Conclude that among the options, animal reservoirs are the correct source of emerging viruses that infect human cells.
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