Day: December 14, 2021

A Brief Overview of Viruses A virus is a submicroscopic infectious agent that replicates only within living cells of an organism. Viruses infect all forms of life, including animals, plants, bacteria, archea, and microorganisms. Despite their small size, viruses are highly contagious and cause a variety of diseases. Below is a brief overview of the major types of viruses. The types of infections caused by viruses can be classified into two main categories: those that are transmitted from person to person and those that are spread between species. Viruses have […]