Question

If virus cannot multiply or does not contain any organ, then how does it cause all the diseases which take time to heal and why there is no such medicines for these diseases

Answer 1

Viruses cannot multiply on their own but they become living cells once they invade or enter the host cells and start multiplying inside the host organism causing diseases.When they are present outside the living cells they become non living.

There is no particular medicines for these diseases because viruses are made up of different types of shapes and structure and they always change their shapes and moreover they are non living when they are present outside. So,the body will not be able to remember a particular virus if it changes its shape.