Skip to main content
infectiousness

infectiousness

1 4.1
How easily a disease spreads from person to person
  • noun
  • /ɪnˈfɛkʃəsnəs/
  • Specialized
translation icon : infectividad
  • The infectiousness of the flu virus can lead to outbreaks in crowded environments.
  • presymptomatic infectiousness
  • reduces infectiousness

When you well within a few days you reach the peak infectiousness.

Autoplay Next

Examples

  • Our study provides estimates of the infectiousness of children under 5 years of age and adults (with the former being much more infectious) on which to base such simulations.

    Academic text (2013)
  • This finding makes sense because the duration of infectiousness is a major determinant of disease transmission.

    Academic text (2012)
  • Applicants were classified according to the presence and infectiousness of TB.

    Academic text (2011)
  • Furthermore, we assumed that infectiousness does not vary over the course of Ebola virus infection.

    Academic text (2015)
  • Different studies offer widely varying estimates regarding the infectiousness of an anthrax aerosol release.

    Academic text (2005)
  • Foreign trade and travel would be reduced or even ended in an attempt to stop the virus from entering new countries—even though such efforts would probably fail given the infectiousness of influenza and the volume of illegal crossings that occur at most borders.

    Academic text (2005)
  • Antiviral drugs are believed to reduce disease severity and duration of infectiousness in individual patients, if taken sufficiently early (9), and to protect contacts of infected persons, if taken prophylactically (13-15).

    Academic text (2015)
  • Health officials monitor the infectiousness of diseases to prevent widespread transmission.

  • The study highlighted the infectiousness of COVID-19, emphasizing the need for public health measures.

Synonyms

infectivity
vsinfectiousness
  • Specialized
1 7.1

How easily a germ or disease spreads and makes people sick

is framed as the quality or state rather than the agent's own ability
transmissibility
vsinfectiousness
  • Specialized
1 7.2

How easily a disease or virus spreads from one person to another

is the general quality of being able to spread infection not the passing action
contagiousness
vsinfectiousness
1 6.0

How easily a disease spreads from person to person

refers to the same spreading but without specifying contact as the route
virality
vsinfectiousness
  • Specialized
7.0

How easily a virus spreads between people

is about ability to spread regardless of how fast that happens
catchiness
vsinfectiousness
4.0

How easily something like a disease or behavior spreads between people

refers specifically to the capacity to spread disease or infection not behaviors
spreadability
vsinfectiousness
  • Specialized
6.1

How easily something like a disease or idea moves between people

is limited to the ability to spread infection among people rather than ideas

How Infectious

infectiousness
  • Specialized
1 4.1
transmissibility
  • Specialized
1 7.2
infectivity
  • Specialized
1 7.1

Surface Forms

Morphology

infectiousness = infectious + infectious (transparent) = infect + ious + ness

Built by straightforward noun formation from the adjective 'infectious' indicating the quality of being able to spread disease.

Etymology

Infectiousness comes from the verb infect, which is made of Latin parts in- 'into' and facere 'to make', the same root you see in factory, a place that makes things. So infectiousness is the quality of 'making someone sick', which explains why it describes how easily a disease spreads.