Frozsen DPT vaccine should be -: (A) Shaken thoroughly before use, (B) Allowed to melt before use, (C) Discarded, (D) Brought to room temperature before use
Answer is C. .DPT/DT vaccines should not be frozen.they should be stored in a refrigerator between 2 to 8 deg.C.vaccine should be used before the date of expiry.the vaccine will lose its potency if kept at room temperature for a long period of time. ref:park&;s textbook,ed 22,pg no 153