Question

Which one of the following diseases is caused by a virus?

• A. Typhoid
• B. Cholera
• C. Influenza
• D. Diphtheria

Answer 1

The correct option is C Influenza

Influenza, or flu, is a respiratory illness that is caused by a virus. Flu is highly contagious and is usually spread by the coughs and sneezes of an infected person. Typhoid fever, also known as typhoid, is a bacterial infection due to Salmonella typhi. Cholera is an infection of the small intestine by the bacterium Vibrio cholerae. Diphtheria is an infection caused by the bacterium Corynebacterium diphtheriae.

Therefore, the correct answer is option C.