The United Nations Children's Fund (UNICEF) and World Health Organization (WHO) has decided to switch from OPV (Oral Polio Vaccine) to IPV (Inactivated Polio Vaccine) for Global Polio Eradication Initiative. How is IPV different from OPV?

  1. While OPV induces only serum immunity, IPV induces both serum immunity and intestinal immunity
  2. While OPV is delivered orally, IPV is given by intramuscular injection
  3. While OPV has a secondary immunization effect, IPV does not has the same

Select the correct code from options given below:

Answer: [B] Only 2 & 3

First statement is incorrect because while OPV induces both serum immunity and intestinal immunity, IPV only induces serum immunity, and not intestinal immunity.

This question is a part of GKToday's Integrated IAS General Studies Module