Q's Health News

A virus is an infectious microscopic organism which invades a living organism, such as humans, animals, bacteria, and plants, and uses those host to replicate. There are a multitude of different viruses. Many viruses cause diseases in humans, such as influenza, the common cold, chicken pox, AIDS, and rabies. Fortunately, for many common viruses there are vaccines available that humans can get to prevent infections.

However, there are not vaccines available for all viruses, especially new ones, like the one that causes the disease COVID-19. In addition, when a person gets infected with a virus,...