<prompt> Reverse cold chain is for-MeaslesPolioRubellaPeussis  <response>: Ans. is b i.e., Polio Reverse cold chain is for transpo of ble poliovirus in stool to an investigation centre. To isolate polio virus from stool, the sample needs to be maintained at 4-8deg C or stored at - 20degC from the moment of collection, to processing in the laboratory. This process for maintaining the bility of polio virus is called Reverse cold chain. o So, in reverse cold chain i Temprature for transpoation -- 2 to 8degC. ii Temprature for storage -- -20degC. o Specific red vaccine carrier is used in reverse cold chain. 