Which of the following is not spread by droplet method?

Options

A. Measles
B. Diphtheria
C. Pertussis
D. Gonorrhoea

Answer

To determine which of the following diseases is not spread by the droplet method, we will analyze each option provided.

### Step-by-Step Solution:

1. **Understand the Droplet Method**: The droplet method of transmission involves the spread of infectious agents through respiratory droplets that are expelled when an infected person coughs, sneezes, or talks. Common diseases spread this way include measles, diphtheria, and pertussis.

2. **Analyze Each Option**:
- **Measles**: This is a highly contagious viral infection that spreads through respiratory droplets from coughs and sneezes. Therefore, measles is spread by the droplet method.
- **Diphtheria**: This is also an infectious disease that can spread through respiratory droplets and direct contact with infected individuals. Thus, diphtheria is spread by the droplet method.
- **Pertussis (Whooping Cough)**: This bacterial infection is known for its severe coughing fits and is transmitted through droplets from coughing and sneezing. Hence, pertussis is spread by the droplet method.
- **Gonorrhea**: This is a sexually transmitted infection (STI) that spreads primarily through sexual contact, not through respiratory droplets. Therefore, gonorrhea is not spread by the droplet method.

3. **Conclusion**: Based on the analysis, the disease that is not spread by the droplet method is **gonorrhea**.

### Final Answer:
The correct answer is **gonorrhea**.

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