Which of the following statements is incorrect ?

Options

A. Pneumonia can be transmitted to a healthy person by inhaling the droplets released by an infected person and also by sharing utensils.
B. Pathogens causing pneumonia are Streptocouccus pneumoinae and Haemophilus influenzae.
C. There is no vaccine yet available to prevent pneumonia
D. None of these

Explanation

To determine which statement about pneumonia is incorrect, let's analyze each statement provided:

1. **Statement 1**: "Pneumonia can be transmitted to a healthy person by inhaling the droplet released by an infected person."
- **Analysis**: This statement is true. Pneumonia is indeed an airborne disease, and it can be transmitted through droplets released when an infected person coughs or sneezes.

2. **Statement 2**: "Pathogen causing pneumonia are Streptococcus pneumoniae, Haemophilus influenzae."
- **Analysis**: This statement is also true. Both Streptococcus pneumoniae (a bacterium) and Haemophilus influenzae (a bacterium) are known pathogens that can cause pneumonia.

3. **Statement 3**: "There is no vaccine yet available to prevent pneumonia."
- **Analysis**: This statement is incorrect. There are vaccines available to prevent pneumonia, specifically the pneumococcal vaccines (PCV13 and PPSV23). These vaccines are designed to protect against the bacteria that commonly cause pneumonia.

4. **Statement 4**: "None of this."
- **Analysis**: This statement implies that none of the previous statements are incorrect, which is not true since Statement 3 is incorrect.

Based on the analysis, the incorrect statement is **Statement 3**: "There is no vaccine yet available to prevent pneumonia."

### Step-by-Step Solution:
1. Identify the statements related to pneumonia.
2. Analyze each statement for its accuracy.
3. Confirm that Statement 1 is true (pneumonia is transmitted via droplets).
4. Confirm that Statement 2 is true (Streptococcus pneumoniae and Haemophilus influenzae are pathogens).
5. Identify Statement 3 as incorrect (vaccines are available).
6. Conclude that the incorrect statement is Statement 3.