Why is the flu called a disease?

Danyell Rowback: There is no difference really. A disease is something that is caused by an external source related to a virus, bacteria, or fungus.

Kris Bozelle: A disease is caused by a virus, among other things like bacteria.

Wilburn Denice: The flu is an endemic and their is a primarily virulent stress which motives influenza. In I feel 1918, there was once an international large epidemic of influenza and scientist speculate it was once unfold through birds. Viruses are constantly replacing, and the hen flu issues scientists and others, in view that the immune approach of so much persons do not admire it in any respect.

Phil Kuarez: There are two broad categories of disease: infectious and non-infectious. The flu is an example of an infectious disease. Cancer is an example of a non-infectious disease. Infectious diseases are caused by some kind of microbial agent - in the case of the flu this microbial agent is a virus. Another example of an infe! ctious disease caused by a virus would be HIV.