Organisms that grow, feed and shelter on or in another organism while contributing nothing to the survival of that organism are _______.

The presence, or the reasonably anticipated presence of blood or other potentially infectious materials on the item's surface or visible debris or residues is called ______.

The term _____ describes a ringworm fungus of the foot.

A _____ is a submicroscopic particle that infects and resides in cells of biological organisms and is capable of replication only through taking over the host cell's reproductive function.

A reaction due to extreme sensitivity to certain foods, chemicals, or other normally harmless substances in a/an ______.

A parasitic disease may be caused by ______.

The determination of the nature of a disease from its symptoms and/or diagnostic tests is a ______.

______ is produced by organisms, including bacteria, viruses, fungi and parasites.

A ____ disease affects the body as a whole, often due to under or over functioning internal glands or organs.