The cold chain equipment used at the district vaccine store for long-term storage of vaccines at -15°C to -25°C is:
- A Deep freezer (DF) ✓
- B Ice-lined refrigerator (ILR)
- C Walk-in cooler (WIC)
- D Cold box
Correct answer: A. Deep freezer (DF)
Explanation
Deep freezers maintain temperatures between -15°C to -25°C and are used for storing OPV (which requires freezing) and for making ice packs. Ice-lined refrigerators (ILR) maintain +2°C to +8°C for other vaccines. Walk-in coolers provide bulk storage at +2°C to +8°C at regional/state level. Cold boxes are used for transportation.
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.