The public health nurse understands that which of the following is an example of a vector borne disease?
Hepatitis B
Rocky Mountain spotted fever
E. coli 0157:H7
Anthrax
The Correct Answer is B
A. Hepatitis B: Hepatitis B is a bloodborne disease, primarily spread through contact with infected bodily fluids, not through a vector.
B. Rocky Mountain spotted fever: Rocky Mountain spotted fever is a vector-borne disease transmitted by tick bites. Vectors are living organisms, such as mosquitoes or ticks, that carry infectious agents.
C. E. coli O157:H7: E. coli is a foodborne illness that spreads through contaminated food or water, not via a vector.
D. Anthrax: Anthrax is a bacterial infection that spreads through direct contact, ingestion, or inhalation of spores, not through a vector.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Being bitten by an infected mosquito: A vector is an organism (e.g., a mosquito, tick, or flea) that transmits pathogens from one host to another. Mosquitoes transmit diseases like malaria, dengue fever, and Zika virus.
B. A group of partygoers hugging and shaking hands: This describes direct contact transmission, not vector-borne transmission.
C. Disease spreading from infected mother to infant via the placenta: This describes vertical transmission (from mother to child during pregnancy), not vector-borne transmission.
D. Two persons, one of whom is infected, sharing a glass of soda: This describes indirect contact transmission through fomites (contaminated objects), not vector-borne transmission.
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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