Name the diseases prevented by:

1. Salk's vaccine
2. BCG vaccine
3. DPT vaccine

Correct the following statements if they are false (without changing the first word).

1. DDT is an antiseptic.
2. Penicillin is a disinfectant.
3. Disinfectants are applied on the body.
4. Deodorants are both antiseptic as well as disinfectant.
5. Alexander Fleming discovered the first sulphonamide.
6. Antibiotics cannot be made synthetically.
7. Sulphonamides are now rarely used.

Penicillin is

1. an antiseptic
2. a disinfectant
3. an antibiotic
4. an anti-toxin

Which of the following immunity is present from our birth?

1. Innate immunity
2. Active immunity
3. Passive immunity
4. Acquired immunity