Influenza
'Spanish Flu' .
The flu is not a fungal disease. Flu is caused by the influenza virus.
Mad cow Disease is not a flu. It is caused by different kinds of organisms called prions, not viruses. It is much more severe than swine flu since the infection is in the brain and central nervous systems of the cattle.
There was a disease that was affecting humans called 'bird flu' that caused a scare a few years ago but is now extinct. it was called bird flu because it was mainly affecting birds
Flu viruses cause disease, they cause influenza (flu). They are the infectious agents of the flu. The viruses are submicroscopic organisms that infect your body and that give you the influenza, the disease.
The disease which is spread from person to person is called infectious disease. For example flu is a viral disease through which the other person is infected from the patient
When diseases spread worldwide it is called a pandemic of that disease.
It is a disease the causes a sickness.
The flu viruses cause the infectious respiratory disease known as influenza.
flu
Environmental disease.
flu