Question

Which of the following diseases is NOT a water-borne disease?

• A. Cholera
• B. Giardiasis
• C. Bronchitis
• D. Dracontiasis

Hint:

Water-borne diseases typically affect the gastrointestinal tract, causing symptoms like diarrhea and vomiting (e.g., Cholera, Giardiasis). Respiratory diseases like bronchitis affect the lungs and are usually spread through the air.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
A water-borne disease is an illness caused by pathogenic microorganisms that are transmitted through contaminated water. The question asks to identify the disease that is not transmitted this way.

Step 3: Detailed Explanation:
\[\begin{array}{rl} \bullet & \text{(A) Cholera: This is a classic water-borne disease caused by the bacterium Vibrio cholerae, which is transmitted through contaminated food and water.} \\ \bullet & \text{(B) Giardiasis: This is a diarrheal disease caused by the microscopic parasite Giardia lamblia, which is commonly spread through contaminated water.} \\ \bullet & \text{(C) Bronchitis: This is an inflammation of the lining of the bronchial tubes, which carry air to and from the lungs. It is typically caused by viral or bacterial respiratory infections, or by irritants like smoke and air pollution. It is an airborne/respiratory disease, not water-borne.} \\ \bullet & \text{(D) Dracontiasis (Guinea-worm disease): This is a parasitic disease caused by the Guinea worm, which is transmitted to humans by drinking water containing copepods (water fleas) that have ingested the worm's larvae.} \\ \end{array}\]

Step 4: Final Answer:
Bronchitis is not a water-borne disease; it is a respiratory condition.