How are viruses good and bad?
Virus are mainly harmful to humans....
Virus mainly acts like a similar type of non-living thing outside..
when they get a living cells, they starts reproducing.
Virus are harmful to humans. They harms us by infecting the living cells.
Viral diseases include the common cold, influenza, AIDS.
Antibiotics are effective against bacteria, not viruses.
Only the antibodies in our body can destroy viruses.