A very dangerous contagious disease in which the air passages, and especially the throat, become coated with a false membrane, produced by the solidification of an inflammatory exudation. Cf. Group.
An infectious disease of childhood characterized by fever, sore throat and the presence of "dirty" (white, grey, brown) membranes in the throat.
Highly contagious infection, primarily affecting the mucous membranes of the nose, throat and larynx. May lead to difficulty breathing, airway obstruction and shock. The bacteria that causes diphtheria produces poisons that spread to the heart and central nervous system. Usually curable with prompt treatment. Delayed treatment may result in death or long-term heart disease.