DictionarycontagionInfectious disease
noun

contagion

kun-TAY-jun/kənˈteɪdʒən/

The passing of an infection between organisms.

The diagram shows contagion as pathogens pass from one person to another.

A diagram shows pathogens passing from one person's hand to another's.
Etymology

The pieces begin with touching together, but Latin contagio often meant contact with something physically or morally unclean. This harmful-contact sense connects touching with the transmission of disease or corrupting influence.

In context

Jubilee53:08
peer influence is one of the great drivers of transgender identity so that's how it's a social contagion people look around at their peers and they see them identifying as lgbtq
Michael Knowles vs 25 LGBTQ+ Activists | Surrounded

More examples

  • Staying home when you are sick helps prevent contagion.
  • The shelter separates sick animals to limit contagion.
  • Fear of contagion keeps some visitors away from the hospital.

Forms

contagion

contagious adjective — Able to spread from organism to organism.

Similar words

transmission
Transmission emphasizes how an infection passes between hosts.
spread
Spread emphasizes an infection reaching more individuals or places.