Which of the following statements are correct about thyphoid?
A) Confirmed by widal test
B) Mary Mallon was carrier
C) Droplet infection
D) Sustained fever `39 – 40^(°)C`
E) Salmonella typhi is pahtogenic virus

Options

A. a, b, d
B. a, b, c, d
C. a, b, c, d, e
D. a. c, d

Answer

To determine which statements about typhoid are correct, let's analyze each option step by step.

### Step-by-Step Solution:

1. **Statement A: Confirmed by Widal test**
- The Widal test is a serological test used to diagnose typhoid fever. It detects the presence of specific antibodies against Salmonella typhi in the patient's serum.
- **Conclusion**: This statement is correct.

2. **Statement B: Mary Mallon was a carrier**
- Mary Mallon, also known as "Typhoid Mary," was an asymptomatic carrier of Salmonella typhi. She unknowingly spread the disease to others through the food she prepared.
- **Conclusion**: This statement is correct.

3. **Statement C: Droplet infection**
- Typhoid fever is primarily transmitted through contaminated food and water, not through droplet infection (which is typical for respiratory diseases).
- **Conclusion**: This statement is incorrect.

4. **Statement D: Sustained fever 39 – 40°C**
- One of the hallmark symptoms of typhoid fever is a sustained high fever, typically ranging from 39 to 40 degrees Celsius.
- **Conclusion**: This statement is correct.

5. **Statement E: Salmonella typhi is a pathogenic virus**
- Salmonella typhi is a bacterium, not a virus. It is responsible for causing typhoid fever.
- **Conclusion**: This statement is incorrect.

### Final Conclusion:
The correct statements about typhoid are A, B, and D.