Louis Pasteur
Pasteur then found a cure for anthrax. He isolated the anthrax microbe under a microscope and used gentle heating to weaken the strength of the anthrax. He used this weakened form as an inoculation to prevent anthrax. Did you find the 3 changes? Click to see the next puzzle.
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To prove that it worked he injected the inoculation into several sheep and then they became immunized against the weak anthrax. Then he injected two groups of sheep with the real anthrax. One group was immunized and one group wasnt, and the unimmunized sheep all died of anthrax and the immunized all lived. |
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