Followings are the vector borne diseases EXCEPT :

Appeared in: Haryana CHO -2023

Explanation

Typhoid fever is caused by the bacterium Salmonella typhi.
Its primary mode of transmission is the fecal-oral route, through the ingestion of contaminated food or water.
It does not require a biological vector (like a mosquito or tick) for transmission, classifying it as a water-borne or food-borne disease.

Option A: Malaria is a protozoal disease transmitted by the bite of an infected female Anopheles mosquito, making it a classic example of a vector-borne disease.
Option B: Dengue is a viral infection transmitted to humans through the bite of infected Aedes mosquitoes. Therefore, it is a vector-borne disease.
Option D: Chikungunya is a viral disease also transmitted to humans by infected Aedes mosquitoes, placing it in the category of vector-borne diseases.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Modes of disease transmission as background academic context rather than a clinical decision trigger.
Understanding the mode of transmission is critical for implementing effective public health interventions. For vector-borne diseases like Malaria and Dengue, control measures focus on eliminating mosquito breeding sites, using mosquito nets, and repellents.
For water-borne diseases like Typhoid, prevention focuses on ensuring safe drinking water, proper sanitation, food hygiene, and promoting handwashing.
A nurse's role includes educating the community about these different prevention strategies based on the specific diseases prevalent in the area.

How to Approach the Question

First, identify the negative keyword 'EXCEPT'. This signals that you must find the option that does not fit the specified category.
Next, define the core concept from the question stem: 'vector-borne disease'. A vector is a living organism that transmits an infectious agent to another living organism.
Systematically evaluate each option against this definition. Recall or determine the mode of transmission for each disease.
Malaria, Dengue, and Chikungunya are all transmitted by mosquitoes, which are vectors.
Typhoid is transmitted through contaminated food and water (fecal-oral route), not by a vector.
The option that does not fit the 'vector-borne' category is the correct answer.

Concept Tested & Keywords

Concept Tested: Modes of disease transmission
Stem keywords: vector borne diseases
Lead-in keywords: EXCEPT
Negative lead-in flag: The question asks for the option that does NOT belong to the group of vector-borne diseases.

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E6 Comprehensive Textbook of Community Health Nursing for BSc Nursing Students Part 2 — Subpart A (pp 1-275 of 550) p. 93-95

E6 Parks TextBook of Preventive & Social Medicine part 2 — Subpart B (pp 233-449 of 464) p. 84-86

Practise the full Haryana CHO -2023

Attempt every question from this paper in a timed mock, then review the full solution for each one.