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Indian Economy - Understanding the basics of Indian economic system

Who among the following developed the Cholera vaccine in 1885?

This questions was previously asked in

SSC MTS 6th October 2021 Shift-3

Edward Jenner

Jaime Ferrán

Jonas Salk

Leon Calmette

- Option 1: Edward Jenner developed the smallpox vaccine in 1796. He is not associated with the cholera vaccine.

- Option 2: Jaime Ferrán developed the first cholera vaccine in 1885. He administered it during an outbreak in Spain.

- Option 3: Jonas Salk developed the polio vaccine in 1955. He is unrelated to the cholera vaccine.

- Option 4: Léon Calmette co-developed the BCG vaccine for tuberculosis, not related to cholera.