Raj. CHO -2024
Microbiology
Medium

Correctly match List I with List II.

List I (Disease) List II (Causes)
A. Meningococcal meningitis I. Bite of infected Culex mosquito
B. Viral Hepatitis-A II. Bite of infected flea
C. Lymphatic Filariasis III. Faecal-oral route
D. Plague IV. Droplet infection

Choose the correct answer from the options given below:

Appeared in: Raj. CHO -2024

Explanation

  • The question tests knowledge of how different infectious diseases are spread.
  • Meningococcal meningitis is a classic example of a disease spread by respiratory droplets from an infected person.
  • Hepatitis A is primarily a food and water-borne illness, transmitted via the faecal-oral route.
  • Lymphatic Filariasis is a vector-borne disease, with mosquitoes (like Culex) acting as the intermediate host and vector.
  • Plague is a zoonotic disease, famously transmitted by fleas from infected rodents to humans.

Why Other Options Were Wrong

  • Option A: This option incorrectly matches Meningitis with flea bites, Hepatitis A with mosquitoes, Filariasis with droplets, and Plague with the faecal-oral route. All pairings are incorrect.
  • Option B: This option incorrectly matches Meningitis with mosquitoes, Hepatitis A with droplets, Filariasis with the faecal-oral route, and Plague with fleas. While the Plague match is correct, the other three are wrong.
  • Option D: This option correctly matches Meningitis (IV) and Hepatitis A (III), but incorrectly swaps the causes for Filariasis and Plague. It links Filariasis to fleas (II) and Plague to mosquitoes (I), which is the reverse of the correct transmission vectors.

Related Visual

Visual explanation — Related Visual
  • Visual 1: Infographic: A chart illustrating the different modes of disease transmission (droplet, airborne, vector-borne, faecal-oral) with examples for each.
  • Visual 2: Illustration: A diagram showing the life cycle of the filarial worm, highlighting the role of the Culex mosquito as a vector.
  • Visual 3: Photograph: A microscopic image of the Yersinia pestis bacterium, the causative agent of plague.
  • Visual 4: Illustration: A depiction of the rat flea (Xenopsylla cheopis), the primary vector for bubonic plague.
Clinical Relevance
  • Nursing practice connection: Knowing Modes of transmission for various communicable diseases helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
  • Understanding transmission modes is fundamental to nursing and public health for implementing appropriate infection control measures.
  • For droplet-spread diseases like meningococcal meningitis, nurses must implement droplet precautions (e.g., surgical mask, patient isolation).
  • For faecal-oral diseases like Hepatitis A, the focus is on hand hygiene, food safety, and sanitation.
How to Approach the Question
  • First, read both lists carefully to understand the items to be matched: diseases and their transmission modes.
  • Start with the pairing you are most confident about. For example, many know Hepatitis A is linked to contaminated food/water (faecal-oral route). So, B matches with III.
  • Next, consider Meningococcal meningitis. The term 'meningitis' often brings to mind close-contact spread, which is droplet infection. So, A matches with IV.
  • Now you have two pairs left: Filariasis/Plague and Mosquito/Flea. Plague is historically known as the 'Black Death' spread by rats and their fleas. So, D matches with II.
  • By elimination, Lymphatic Filariasis (C) must match with the bite of an infected Culex mosquito (I).
  • Finally, assemble your matches (A-IV, B-III, C-I, D-II) and find the option that corresponds to this sequence.
Concept Tested & Keywords
  • Concept Tested: Modes of transmission for various communicable diseases.
  • Stem keywords: Meningococcal meningitis, Viral Hepatitis-A, Lymphatic Filariasis, Plague
  • Lead-in keywords: Match List I with List II
  • Negative lead-in flag: false

Question ID

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