Abstract

Introduction: A viral test is done to find infection-causing viruses . Viruses grow only in living cells. Viruses cause disease by destroying or damaging the cells they infect, damaging the body’s immune system Changing the genetic material (DNA) of the cells they infect, or causing inflammation that can damage an organ. Viruses cause many types of diseases, such as human immunodeficiency virus (HIV), cold sores, chicken pox, measles, flu, and some types of cancer