<prompt> All of the followng statements are true about DPT vaccine except -It should be stored in deep freezerExposure to direct sunlight, when in use should be avoidedStore stocks are needed for three months at PHC levelHalf - used ls should not be put back into the cold chain after the session  <response>: Ans. is a i.e., It should be stored in deep freezer DPT vaccine must be stored in cool pa of a freeze at 4-8degC but not in freezer. About other options :? o Exposure to direct sunlight should be avoided. o Open multi-dose ls which have not been fully used should be discarded at the end of session. 