Question

Which of the following diseases is not airborne?

• A. Respiratory infection
• B. Conjunctivitis
• C. Diarrhoea
• D. Bronchitis

Hint:

Think about the location of the infection. Airborne diseases usually affect the respiratory system. Diseases affecting the digestive system, like diarrhoea, are typically transmitted through contaminated food or water.

Answer 1

The Correct Option is C

Step 1: Define airborne disease. An airborne disease is any disease that is caused by pathogens and transmitted through the air.

Step 2: Analyze the modes of transmission for the given diseases.

Respiratory infections (like flu, common cold) and Bronchitis are typically spread through droplets when an infected person coughs or sneezes.
Conjunctivitis (pink eye) can be airborne (viral), but is most often spread by direct contact. However, compared to the other options, it has an airborne vector.
Diarrhoea is an intestinal infection and is primarily transmitted through the faecal-oral route, typically by consuming contaminated food or water. It is a waterborne or foodborne disease, not airborne.