About Viruses
About Viruses and Coronaviruses
About Viruses: A Virus is a small infectious agent that replicates only inside the living cells of an organism. Viruses can infect all types of life forms, from animals and plants to microorganisms, including bacteria and archaea.
More here: https://en.wikipedia.org/wiki/Virus
About Corona Viruses: Coronaviruses (CoV) are a large family of viruses that cause illness ranging from the common cold to more severe diseases such as Middle East Respiratory Syndrome (MERS-CoV) and Severe Acute Respiratory Syndrome (SARS-CoV). A novel coronavirus (nCoV) is a new strain that has not been previously identified in humans.
More here: https://www.who.int/health-topics/coronavirus