Description : Which of the following diseases is caused by a virus? (1) Influenza (2) Pneumonia (3) Cholera (4) Whooping cough
Last Answer : (1) Influenza Explanation: Influenza, commonly known as the 'flue, is an infectious disease of birds and mammals caused by RNA viruses. The most common symptoms are chills, fever, sore ... , influenza is transmitted through the air by coughs or sneezes, creating aerosols containing the virus.