Research & Economic Development

Office of the Vice Chancellor

The “Jeev” Cell Phone Application for Tracking Vaccination Coverage


Jeev is based on a client-server model where the client smartphones and the server smartphone communicate via cheap text messaging. (The messages are encrypted for security reasons.) When a child is first vaccinated, the client smartphone (carried by a health worker) generates and prints a QR code sticker using the child’s and parent’s/ legal guardian’s information. A vaccination record for that child is created on the server. The QR code sticker is affixed to the national ID card of the parent, a necessary form of permanent documentation used in many under-resourced nations.  QR uniquely identifies the child without biometric data. Encryption is employed to avoid unauthorized clients from reading the QR codes. Extra stickers are provided to the parent; the code can also be sent as a text message to the parent’s cell phone. This protects the vaccination record in case documentation is lost. During future vaccination visits, the client smartphone scans the QR code on the ID card and the vaccination record is updated on the server. Vaccination coverage information can be visualized by health officials on the server smartphone.


  • Low-cost
  • Easy to use
  • Combines the power of smartphones and ubiquity of cellular infrastructure, Quick Response (QR) codes, and national identification cards.
  • QR codes encode 400 times more data than UPC codes, can tolerate up to 30% damage and still have fast readability.