Stage 1: GROWING THE PENICILLIN-
The process devised by chain to make penicillin was a combination of the latest freeze-drying technology and some much more traditional equipment: thousands of milk bottles(in which to grow the bacteria), milk churns, a dog bath and a hand pump! Slowly the team gathered a few grams of pure penicillin.
Stage 2: TESTING THE PENICILLIN OF ANIMALS-
There was just enough penicillin to try an experiment on eight mice. They were all injected with dangerous microbes. Four mice were then given penicillin. Four mice were not. Twenty-four hours later the mice who had not been injected with penicillin were dead. Those who had been given penicillin were fine.
Stage 3: THE FIRST HUMAN TRIAL OF PENICILLIN-
The team needed more penicillin for a human trial than they had for the mice. It was not until early 1941 that they had enough to test on a human patient.
Comments
No comments have yet been made