According to the current National Immunization Schedule, the two fractional doses of inactivated poliovirus vaccine (fIPV) are administered at which ages?
- A Birth and 6 weeks
- B 6 weeks and 14 weeks ✓
- C 14 weeks and 9 months
- D 6 weeks and 9 months
Correct answer: B. 6 weeks and 14 weeks
Explanation
After the switch from trivalent to bivalent OPV, India introduced fractional IPV as 0.1 mL given intradermally in two doses at 6 weeks and 14 weeks, replacing the earlier single full intramuscular dose at 14 weeks. Fractional intradermal dosing achieves comparable priming with one fifth of the antigen volume. Birth and 6 weeks describes the old sequential IPV-OPV schedules used briefly during introduction phases.
Reference: Park's Textbook of Preventive and Social Medicine, 27th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.