Question

Active immunity is produced in one’s body by exposure to:
i. Toxoids
ii. Subclinical infection
iii. Antitoxins
iv. Immunoglobulins
v. Antigen

• A. ii, v
• B. ii, iv, v
• C. i, ii, v
• D. ii, iii, v

Answer 1

The correct option is C i, ii, v

Active immunity is developed due to the production of antibodies in an individual's body and can be induced by any substance that actively stimulates the immune system to produce antibodies.
Vaccines which include exposure to dead or weakened pathogens, toxoids or inactive toxins, infection or antigen exposure can induce active immunity where the body itself will produce antibodies against the foreign agent.
Antitoxins and immunoglobulins are examples of passive immunity. These are readymade antibodies which are produced outside the body and injected at the time when there is need of immediate immune response like in case of tetanus.