Structure Of Corona Virus And Spreading Stock Image

An infective agent that typically consists of a nucleic acid molecule in a protein coat, is too small to be seen by light microscopy, and is able to multiply only within the living cells of a host.Viruses are small particles of genetic material either DNA or RNA that are surrounded by a protein coat. When most people hear the word `virus,` they think of disease-causing pathogenic viruses such as the common cold, influenza, chickenpox, human immunodeficiency virus HIV, and others.any of a group of RNA viruses that cause a variety of diseases in humans and other animals.