COLD CHAIN AND VVM

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 Cold chain - 

The cold chain is a set of rules and procedures that ensure the proper storage and distribution of vaccines to health services from the national to the local level. The cold chain is interconnected with refrigeration equipment that allows vaccines to be stored at recommended temperatures to maintain their potency.

(कोल्ड चेन नियमों और प्रक्रियाओं का एक समूह है जो राष्ट्रीय स्तर से लेकर स्थानीय स्तर तक स्वास्थ्य सेवाओं के लिए टीकों के उचित भंडारण और वितरण को सुनिश्चित करता है। कोल्ड चेन रेफ्रिजरेशन उपकरण के साथ जुड़ा हुआ है जो टीकों को उनकी क्षमता बनाए रखने के लिए अनुशंसित तापमान पर संग्रहीत करने की अनुमति देता है।)

Types of cold chain - 

There are two types of cold chain packaging systems:- 

 active and passive - . Active systems consist of cold chain transport containers featuring advanced electric or battery-powered temperature controls. Active systems often have built-in cooling units or rely on dry ice as a coolant.


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