<prompt> Reverse Cold Chain is used for:-Transpoation of vaccines in 2 to 8 degrees Celsius from PHC to sub-centreTranspoation of Oral Polio vaccine in -20 to -40 degrees CelsiusTranspoation of Poliomyelitis stool samples from Field to LaboratoryNone of the above  <response>: Cold chain: Is a system of storage and transpoation of vaccines from the point of manufacture to the point of administration.actual vaccination site Temperature of cold chain : 2 C to 8 C. Reverse cold chain: Is the term used for transpoation of stoolsamples from a suspected polio case for diagnosis. National Polio Elimination Programme Temperature of Reverse Cold Chain: 2 C to 8 C. Specific red vaccine carrier is used in reverse cold chain. Warm chain: Keeping a preterm, pre-mature newborn against the body to mother to prevent neonatal hypothermia NNH -Kangaroo Mother Care. NOTE Polio vaccine is the most heat sensitive vaccine 