In epidemiology, infectivity refers to the ability of a pathogen to establish an infection. It should be contrasted with virulence, which refers to the damage done by the pathogen once the infection is established.

It is closely related to the concept of incidence, which is the measure of infectivity in a population.

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  • infectivity — infekciškumas statusas Aprobuotas sritis augalų apsauga apibrėžtis Patogeninio mikroorganizmo ypatybė užkrėsti imlų šeimininko organizmą. atitikmenys: angl. infectivity vok. Infektiosität, f rus. заразность; инфекционность pranc. infectiosité, f… …   Lithuanian dictionary (lietuvių žodynas)

  • infectivity — noun see infective …   New Collegiate Dictionary

  • infectivity — (in fek tiv i te) Infectiousness; the state or quality of being infectious or communicable …   Dictionary of microbiology

  • infectivity — See infectiveness. * * * …   Universalium

  • infectivity — noun The ability of a pathogen to establish an infection …   Wiktionary

  • infectivity — 1. The characteristic of a disease agent that embodies capability of entering, surviving in, and multiplying and causing disease in a susceptible host. 2. The proportion of exposures in defined circumstances that result in infection. * * *… …   Medical dictionary

  • infectivity — n. contaminability, quality of being infectious …   English contemporary dictionary

  • infectivity — in·fec·tiv·i·ty …   English syllables

  • infectivity — ˌinˌfekˈtivəd.ē noun ( es) : the quality of being infective : the ability to produce infection; specifically : a tendency to spread rapidly from host to host distinguished from virulence * * * infectˈiveness or infectivˈity …   Useful english dictionary

  • Hepatitis-B-infectivity-Antigen — Hepatitis B infectivity Anti|ge̲n [...witi...; engl. infectivity = Ansteckungsfähigkeit] s; s, e: Bez. für das Antigen des Hepatitis B Virus, das die Prognose der Hepatitis B bestimmt; Abk.: HBeAG …   Das Wörterbuch medizinischer Fachausdrücke

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