A health worker opens a 10-dose vial of DPT vaccine at a fixed session. As per the revised Open Vial Policy, what is the maximum number of days the opened vial can be retained for use at subsequent sessions, provided all conditions are met?
- A 7 days
- B 14 days
- C 28 days ✓
- D 48 hours
Correct answer: C. 28 days
Explanation
Under the revised Open Vial Policy adopted in India, opened multi-dose vials of DPT, Hepatitis B, Pentavalent, OPV, IPV, TT, and Hib-containing vaccines can be retained for up to 28 days after opening, provided the expiry date has not passed, the VVM is in usable condition, aseptic technique was used, and the cold chain was maintained. The 48-hour distractor is the discard time for reconstituted BCG and measles vials.
Reference: Ministry of Health and Family Welfare, Open Vial Policy Guidelines, 2015 ed.
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