we an treat a infectious diseases by killing microbe  . justify this statement

Yes, we can treat an infectious disease by killing the microbes that cause the infectious disease.

Diseases where infectious agents such as bacteria, virus or other microbes are involved are known as infectious diseases. The infectious diseses could be treated by involving the use of microbe- specific medicines.These medicines are manufactured to block the biochemical pathway specific to the microbe like respiration or synthesis of enzymes. The medicines do not affect the pathways occurring in our body, or else this could have an adverse effect.

For example, antibiotic penicillin blocks the cell wall formation in bacteria. Similarly, drugs like quinine are used to treat malaria.