Pick the odd one out :- cholera, measles, tuberculosis, tetanus. Give reason also.

Dear Student,

Ans. Measles 

This is because cholera, tuberculosis, and tetanus are all caused by bacteria but measles is caused by a virus.

Mentioned below are the causative agents of the diseases: 
Cholera caused by Vibrio cholerae (a Bacteria)
Tuberculosis caused by Mycobacterium tuberculosis bacteria (a bacteria)
Tetanus caused by Clostridium tetani (a bacteria)
Measles caused by Rubeola virus (a virus)

Regards