infectiousness

Ability to spread

Infectiousness is the quality of being able to spread from one person or organism to another.

A disease's infectiousness determines how readily it transmits: The infectiousness of measles makes vaccination critical.

The word extends to anything that spreads readily—laughter, enthusiasm, ideas: the infectiousness of her optimism.

contagion

transmission

Sending of information

transmissible · catching · airborne · droplet · contact · vector · carrier · incubation · quarantine · isolation

virality

viral

Spreading quickly online

shareable · trending · buzz · hype · sensation · phenomenon · wildfire · earworm · hook · addictive

charisma

contagious

Transmissible between people

compelling · charismatic · enthusiasm · energy · excitement · fervor · vivacious · spirited · exuberance · warmth

disease

pathogen

Disease-causing microorganism

  • virusMicroscopic infectious agent
  • bacteriaNucleus-free single-celled organisms
  • microbeMicroscopic living organism

parasite · fungus · tuberculosis · malaria · influenza · measles · cholera · typhoid · hepatitis · pneumonia

Opposites
transmissibility

infectiousnesscontainment

Preventing hostile expansion

sterility · inertness · harmlessness · incommunicability · isolation

host susceptibility vs protection

infectiousnessimmunity

Protected from harm

resistance · imperviousness · invulnerability · protection · insusceptibility

metaphorical spread (ideas/emotions)

infectiousnessinsularity

Narrow detachment from broader views

repulsiveness · confinement · isolation · stagnation

Family

infect, infection, disinfect, infected, infectious, disinfectant, disinfected, infecting, infections

Familiarity
Top 100,000
Profile
Used worldwide · Timeless · Abstract · Negative · Rated G