Edward Jenner observed that people who had contracted cowpox, a mild disease, seemed to be immune to smallpox. This observation led him to develop the smallpox vaccine.

April 15, 2026Biology

ScanSolve AI Answer

April 15, 2026

Edward Jenner observed that people who had contracted cowpox, a mild disease, seemed to be immune to smallpox. This observation led him to develop the smallpox vaccine.

The correct option is:

The protective effect of cowpox.

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Edward Jenner observed that people who had contracted cowpox, a mild disease, seemed to be immune to smallpox.

Asked on April 15, 2026Biology

This biology question covers important biological concepts and processes. The step-by-step explanation below helps you understand the underlying mechanisms and reasoning.

ScanSolve AI AnswerAnswered on April 15, 2026

Edward Jenner observed that people who had contracted cowpox, a mild disease, seemed to be immune to smallpox. This observation led him to develop the smallpox vaccine. The correct option is: The protective effect of cowpox. 3 done, 2 left today. You're making progress.