Day: March 20, 2022

A virus is a submicroscopic infectious agent that replicates only inside the living cells of other organisms. Viruses can infect animals, plants, microorganisms, archea, and even humans. The main reason viruses cause disease is because they are so contagious. Infecting a person is one of the most common ways to spread diseases. Fortunately, there are many types of viruses that can infect people. The virus is made up of two primary components: a nucleic acid and a protein coat. Some viruses also have an additional coat called an envelope that […]