Which of the following sets of diseases is caused by bacteria?

Cholera is caused by the bacterium Vibrio cholera and tetanus is caused by the bacterium Clostridium tetani.

Cholera is an acute diarrheal illness caused by infection of the intestine with Vibrio cholerae bacteria. People can get sick when they swallow food or water contaminated with cholera bacteria. The infection is often mild or without symptoms, but can sometimes be severe and life-threatening.

Tetanus is a serious disease of the nervous system caused by a toxin-producing bacterium. The disease causes muscle contractions, particularly of your jaw and neck muscles. Tetanus is commonly known as lockjaw. Severe complications of tetanus can be life-threatening.

Smallpox, mumps, herpes, and influenza are viral diseases.