Multiple Choice
Which of the following answers does not include an example of transient microbiota?
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26. Prokaryotes
Prokaryotes in the Environment
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Virulent pathogens are:
A
Less likely to cause disease.
B
More likely to cause disease.
C
Only able to cause disease in weakened hosts.
D
Always cause disease whenever inside a host.
Verified step by step guidance1
Understand the term 'virulent pathogens': Virulent pathogens are microorganisms that have the ability to cause disease. The term 'virulence' refers to the degree of pathogenicity within a group or species.
Consider the characteristics of virulent pathogens: They possess factors that enable them to invade the host, evade the immune system, and cause damage to the host's tissues.
Evaluate the options given: The first option suggests they are less likely to cause disease, which contradicts the definition of virulence. The second option states they are more likely to cause disease, aligning with the concept of virulence.
Analyze the third option: It suggests that virulent pathogens can only cause disease in weakened hosts. While some pathogens may be opportunistic, virulent pathogens typically have mechanisms to infect healthy hosts as well.
Consider the fourth option: It implies that virulent pathogens always cause disease whenever inside a host. While they are more likely to cause disease, the host's immune response can sometimes prevent disease development.
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