Chain of Transportation Of Vaccines: The vaccine is first rolled out from the manufacturer site and goes to the closest airport, which in Serum Institute case is Pune Airport. From Airport, the vaccine is transported to four main primary vaccine stores in India - Karnal, Chennai, Kolkata and Mumbai that essentially covers North, South, East and West for India.
From these Primary Vaccine Stores, the vaccine is transported to the 37 state centres in refrigerated vans, where each state will have minimum one centre. But there are some bigger states like Uttar Pradesh that has as many as nine centres. From the state vaccine store these vaccines will be sent to the district vaccine stores. From district stores the vaccine will be sent to primary healthcare centres, where the vaccine will be distributed.