Infectious particles that cause disease in plants. They are made of single-strand DNA without a protein coat.
A type of viral infection in which the host cell bursts, releasing new viral offspring to infect other cells.
A rapid outbreak of an infection. The flu is an example of an __________. In the U.S., 20 million people are infected with the flu every year.
A substance, often given as a shot, that causes the body to defend against viral diseases. For example, you got the DTAP ________.
A long, whip-like structure outside of a cell that is used for movement, kind of like a tail that helps a bacteria swim.
A poison released by an organism. Bacteria can cause illness because it releases this into the bloodstream.