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Complete the following sentence by using the list of options for the epidemiological triangle.

The nurse is completing the epidemiological triangle and understands that

is an example of an agent could represent a host, and is an example of environment.
Answer and Explanation

The Correct Answer is {"dropdown-group-1":"B","dropdown-group-2":"A","dropdown-group-3":"A"}

I. Agent: Plasmodium-Plasmodium is a protozoan parasite responsible for causing malaria. It is the infectious microorganism that leads to disease, making it the agent in this scenario.

II. Host: Human- In malaria transmission, humans serve as the primary host where Plasmodium multiplies and causes illness. The parasite infects red blood cells, leading to symptoms like fever and chills.

III. Environment: Stagnant water- Stagnant water serves as a breeding ground for Anopheles mosquitoes, which are the vectors that transmit Plasmodium to humans. The environment plays a crucial role in maintaining the conditions necessary for disease transmission.


 


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Related Questions

Correct Answer is D

Explanation

A. Herd immunity: Herd immunity occurs when a large portion of the population is immune, reducing the spread of disease. However, the individual receiving the vaccine develops active immunity, not herd immunity.

B. Natural immunity: Natural immunity occurs after infection and recovery, not from vaccination.

C. Acquired immunity: While acquired immunity includes both active (vaccination or infection) and passive (antibodies from mother or immunoglobulin) immunity, the most specific answer is active immunity.

D. Active immunity: Vaccines stimulate the immune system to develop long-term immunity by producing antibodies against the virus.

Correct Answer is B

Explanation

A. Dengue: Dengue is transmitted by Aedes mosquitoes and is found in tropical regions, but it is less commonly imported to the U.S. than malaria.

B. Malaria: Malaria is the most frequently imported vector-borne disease in the U.S. due to international travelers coming from endemic areas (Africa, South Asia, South America). It is transmitted by Anopheles mosquitoes.

C. Onchocerciasis (river blindness): This disease is primarily found in Africa and is not commonly imported to the U.S. by travelers.

D. Yellow fever: While yellow fever exists in endemic areas, travelers are often vaccinated before visiting these regions, reducing its importation risk.

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