India's Open Vial Policy permits reuse of opened multi-dose vials at subsequent immunization sessions. This policy does NOT apply to which vaccine?
- A Measles-Rubella (MR) vaccine ✓
- B Oral Polio Vaccine (OPV)
- C Hepatitis B vaccine
- D Tetanus Toxoid (TT)
Correct answer: A. Measles-Rubella (MR) vaccine
Explanation
The Open Vial Policy applies to liquid vaccines (OPV, TT, Hepatitis B, DPT) that meet WHO criteria for multi-session use — intact VVM, cold chain maintained, and no contamination. MR vaccine is a lyophilized (freeze-dried) vaccine requiring reconstitution with a diluent; once reconstituted it must be used within 4 hours and cannot be stored for the next session. All reconstituted vaccines (BCG, MR, JE) are excluded from the Open Vial Policy.
Reference: Park's Textbook of Preventive and Social Medicine, 27th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
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