Question

62. What type of microorganism causes the flu? ​

Answer 1

Response:

The flu is caused by an influenza virus. Most people get the flu when they breathe in airborne droplets from a cough or sneeze of someone who has the flu.

There are four types of influenza viruses: A, B, C, and D. Human influenza A and B viruses cause a seasonal epidemic of illness (known as influenza season) almost every winter in the United States.