______ is the vaccine used to cure the disease caused by Salmonella typhi.

The correct option is A

TAB

The correct option is A:

Explanation of correct option:

1. Vaccine stimulates the body's immune system to fight against a particular disease.
2. Salmonella typhi is the bacteria that is responsible for typhoid.
3. TAB also called typhoid vaccine is used to cure typhoid.

Explanation of incorrect options:

Option B:

1. BCG vaccine is used to prevent Tuberculosis that is caused by Mycobacterium.

Option C:

1. OPV also called Oral Polio Vaccine is used to prevent Polio.

Option D:

1. DPT vaccine is used to prevent diphtheria, pertussis, and tetanus.

Final answer: TAB is the vaccine used to cure the disease caused by Salmonella typhi.