Question

Define viruses and name some diseases caused by viruses also learn them.

Answer 1

virus are the smallest microorganisms which are found dead in the surrounding. some disease caused by virus are polio, chickenpox etc..

Answer 2

It is a small infectious agent that replicates only inside the living cell of organisms. Outside a host ( living cell ) it is inactive.
It can infect all type of life forms, from animal and plants to microorganisms,
Including bacteria and archae.
Diseases caused :
the common cold and different types of flu.
measles, mumps, rubella, chicken pox, and shingles.
hepatitis.
herpes and cold sores.
polio.
rabies.
Ebola and Hanta fever.
Hope this helps you : )