infectivity

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English[edit]

Etymology[edit]

infective +‎ -ity

Noun[edit]

infectivity (countable and uncountable, plural infectivities)

  1. The ability of a pathogen to establish an infection
    • 1972, Charles Allan Birch, The House Physician's Handbook (page 70)
      The reputation for low infectivity of rubella was probably based on failure to recognise rashless cases.