Answer to Question 1
D
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A Incorrect. A vector is not best described as the point at which an infection entering the body intersects with an infection leaving the body.
B Incorrect. A vector is not best described as the area of initial bite or contact by the disease-bearing animal or insect.
C Incorrect. A vector is not best described as a person or animal who is infected with an organism but does not have the disease.
D Correct. A vector is best described as an animal or insect that carries the infectious organism from one host to another.
Answer to Question 2
A
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A Correct. The reservoir, one of six factors in the chain of infection, is best described as living and nonliving places there pathogens can survive without multiplication.
B Incorrect. The reservoir, one of six factors in the chain of infection, is not best described as a pool of water there mosquitoes can breed and thus more quickly spread infection.
C Incorrect. The reservoir, one of six factors in the chain of infection, is not best described as the stomach, which holds a large number of pathogens for a significant amount of time.
D Incorrect. The reservoir, one of six factors in the chain of infection, is not best described as any area there a stable amount of water is present.
Rabbit with Shope papilloma virus infection
Laboratory tests to screen for infection
Implications for infection control
Chain of Infection
How to find the components of a vector found in the first quadrant
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