The virus that causes a staph infection is an example of a contagion.
The spread of a staph infection from one patient to another as a result of close contact in a hospital is an example of contagion.
The spread of a dangerous political idea like communism from one person to another is an example of contagion.
Feared that violence on television was a contagion affecting young viewers.
Origin of contagion
- Middle English contagioun from Latin contāgiō contāgiōn- from contingere contāct- to touch contact
From American Heritage Dictionary of the English Language, 5th Edition
- From Middle English (late 14th century), from Old French, from Latin contagio (“a touching, contact, contagion”) related to contingo (“touch closely”)