A more refined and pure form of insulin was developed, this time from the pancreases of cattle. In January 1922, Leonard Thompson, a 14-year-old boy dying from diabetes in a Toronto hospital, became the first person to receive an injection of insulin.

When was the first insulin injection given?

A more refined and pure form of insulin was developed, this time from the pancreases of cattle. In January 1922, Leonard Thompson, a 14-year-old boy dying from diabetes in a Toronto hospital, became the first person to receive an injection of insulin.

When did Sir Frederick Banting discover insulin?

Banting & Best: Discovery of insulin

July 27 marks one of the most important days in diabetes treatment history. On that date in 1921, Dr. Frederick Banting, a Canadian surgeon and Charles Best, a medical student, successfully isolated the hormone insulin for the first time.