During an outreach session, how should freeze-sensitive vaccines such as pentavalent vaccine be protected in a vaccine carrier?
Correct answer: B. Keep them away from direct contact with frozen ice packs
- A. Place them directly against frozen ice packs
- B. Keep them away from direct contact with frozen ice packs
- C. Store them beside the carrier’s warmest outer wall
- D. Open each vial and leave it outside the carrier
Explanation
Pentavalent vaccine can be damaged by freezing, so it should not touch frozen ice packs directly. Conditioned ice packs and proper packing help maintain the cold chain without freezing the vaccine.
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About Immunisation and EPI
Immunisation covers active and passive immunity, vaccine types, routine childhood schedules under Pakistan’s Expanded Programme on Immunization, administration routes and age-based timing. It also includes cold-chain maintenance, contraindications, adverse events following immunisation, missed doses and the distinction between vaccine protection and treatment of an established infection.
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