Which of these diseases spreads through the air?

Options

A. Cholera
B. Malaria
C. Typhoid
D. Measles

Answer

To determine which of the listed diseases spreads through the air, let's analyze each disease one by one:

1. **Cholera**:
- Causative organism: Bacteria (Vibrio cholerae).
- Mode of transmission: Cholera spreads through contaminated water and food. It is not transmitted through the air.

2. **Malaria**:
- Causative organism: Protozoan (Plasmodium).
- Mode of transmission: Malaria is transmitted by the bite of infected female Anopheles mosquitoes. It does not spread through the air.

3. **Typhoid**:
- Causative organism: Bacteria (Salmonella typhi).
- Mode of transmission: Typhoid spreads primarily through contaminated food and water, as well as person-to-person contact. It is not an airborne disease.

4. **Measles**:
- Causative organism: Virus.
- Mode of transmission: Measles spreads through the air when an infected person coughs or sneezes, releasing droplets into the environment. A healthy person can inhale these droplets and become infected. This makes measles a highly contagious airborne disease.

**Conclusion**: The disease that spreads through the air is **Measles**.