A virus is a micro-organism which causes disease by landing on a cell, breaking into it, then forcing the cell to make copies of it. The cell dies of exaustion, and the copies of the virus (plus the original virus) go on to other cell to wreak havok upon. An epidemic on the other hand, is when lots of people in the same area (though it may eventually spead out), aren't immune to a highly contagious disease allowing it to spread widely around an area.
yes
A virus runs in a thread, as do all programs. The difference between a generic thread and a virus is that the thread may not be harmful, while the virus generally is.
The epidemic was caused by a highly contagious virus.
The virus has hit epidemic proportions, in just two weeks.
Flu is always caused a virus, not bacteria, so no flu epidemic will be due to a bacterial agent. This is true of the 1918 "Spanish Flu", it was caused by a virus.
The difference between a common animal virus and a retrovirus is that a retrovirus only contains RNA while a common animal virus will have DNA or RNA.
If on Eradicator Epidemic Virus' activation, you have two cards on the field that it will destroy, then you can chain Starlight Road.
A pathogenic bacterium is alive while a virus is not.
similar cards would be eradicator epidemic virus and deck devastation virus.
Computer virus' attack switches whereas human virus' affect cells.
The difference between HIV and AIDS is that HIV is the virus that causes the disease AIDS. You can be a carrier of the HIV virus and not contract the disease but you can infect others.
virus, epidemic, cold, the flu