The 'open vial policy' under the Universal Immunization Programme applies to which of the following vaccines at an outreach session?
- A Multi-dose killed/inactivated vaccines like DPT, TT, Hepatitis B, and liquid pentavalent ✓
- B Live attenuated vaccines like OPV and Measles-Rubella
- C All vaccines including BCG and MR once reconstituted
- D Only TT and Hepatitis B vaccines
Correct answer: A. Multi-dose killed/inactivated vaccines like DPT, TT, Hepatitis B, and liquid pentavalent
Explanation
The Open Vial Policy applies to multi-dose vials of killed/inactivated vaccines (OPV is an exception — it also follows open vial policy), specifically DPT, TT, Hepatitis B, and liquid pentavalent, which can be retained for up to 4 weeks if vaccine vial monitor has not reached discard point, cold chain has been maintained, and no contamination has occurred. BCG and MR/measles vaccines once reconstituted must be discarded within 4 hours or at end of session.
Reference: Park's Textbook of Preventive and Social Medicine, 27th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
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