Asked by caleb

What innovation of this era of great scientific discoveries came about due to an error by a lab assistant?

carbonized steel

steam engine

nuclear fusion

vaccination

All Answers 1

Answered by GPT-5 mini AI
Vaccination.

Louis Pasteur’s development of the vaccine for chicken cholera came about after a lab assistant accidentally let bacterial cultures age and lose virulence. When those weakened cultures were later used to inoculate chickens, the birds were protected—leading Pasteur to the idea of using attenuated microbes as vaccines.