Proper temperature monitoring is key to proper cold chain management and it does not mean that vaccines must be kept too cold or frozen as less temperature is as dangerous as warm temperature as high and low temperature kill vaccine effectiveness as either live virus /bacterial particle or its toxoid get detoxified or lose its potency or pyrogenicity to produce effective antibodies after the immunisation if vaccine not stored or taken from one place to another maintaining cold chain or effective temperature. Most commonly recommended vaccines require storage temperatures of 35°F-46°F (2°C-8°C) and must not be exposed to freezing temperatures, so never keep vaccines frozen or in freezer section of a refrigerator but keep in refrigerator outside freeze section and must see that cooling temperature is not too cold or electric supply to refrigerator is round the clock ,same way during…