What are Viruses? (Biological Viruses, not Digital Viruses)

Viruses are microscopic organisms that attack on to the cells of other organisms to multiply. They inject their genetic material and use the organelles of the cell to create replicas of the cell. Viruses can be spread through the air, bodily contact, contact with contaminated fluids and, animal waste. Pathogenic viruses use the cell to replicate and damage or destroy the cell. Non-pathogenic or benign viruses only use the cell to replicate. Once a virus gets into our body, our body gets rid of the virus and get immune to it. The only reason we get cold multiple times is because there are multiple strains or types of cold.