An uncontrolled growth of harmful microorganisms in a host.
The act or process of infecting.
A disease caused by a pathogen.
A visible sign of such a disease, such as the suppuration of a wound.
A thick resistant particle produced by a bacterium or protist to survive in harsh or unfavorable conditions.
A reproductive particle, usually a single cell, released by a fungus, alga, or plant that may germinate into another.
To produce spores.