Question

what is an antibiotic?

Answer 1

Antibiotics are the medicines used to kill the microbes in our body. The antibiotic usally provides energy to our immune system and the immune system protect us from that disease.

Answer 2

An Antibiotic is a medicine which is prevents the spread or destroys the micro organism which causes disease.

An antibiotic is effective against bacterial disease.
It is not effective against disease caused by virus