Definition of passive immunity in US English:

passive immunity


  • The short-term immunity which results from the introduction of antibodies from another person or animal.

    Compare with active immunity
    • ‘While present, passive immunity may interfere with the immune response to a vaccine.’
    • ‘Late infections are influenced by the presence of GVHD and decreased immune function.2,4 During this time, passive immunity from the donor has decreased but the recipient has not developed a fully functional immune response.’
    • ‘The use of BC as prophylaxis or treatment for infectious disease relates to the historical concept of ‘immune milk ‘being capable of transferring passive immunity.’’
    • ‘In Berlin, Koch's assistants had discovered the principle of passive immunity and antitoxins.’
    • ‘Vaccines capable of stimulating the mother's and/or infant's immune response or passive immunity therapies may be capable of reducing perinatal transmission 49.’
    • ‘The offspring acquire passive immunity from the surrogate mother via placental blood supply or milk, and this makes them as resistant to local diseases as the surrogate mother.’
    • ‘Much more commonly, anti-tetanus serum has been widely used to confer passive immunity after potentially contaminated minor injuries.’
    • ‘Vaccination, on the other hand, imparts passive immunity that is short lived.’
    • ‘Researchers expended considerable effort to develop methods of active immunity to prevent scarlet fever, as well as methods of passive immunity to treat scarlet fever.’
    • ‘The study on understanding the nature of passive immunity in WNV infected mice elucidated the transfer of maternal antibodies through placenta and colostrum 47.’
    • ‘Our results thus suggest an approach for in situ delivery of passive immunity at mucosal sites.’
    • ‘A newborn baby acquires passive immunity from its mother through the placenta.’
    • ‘This produces what is called passive immunity, and is employed as previously briefly described, to provide immediate but relatively short term protection against exposure to tetanus, and other microorganisms.’
    • ‘Once the fractionation of immunoglobulins was successfully performed in the 1940s, the use of immunoglobulins (especially gamma globulin) became an established method of providing protective, passive immunity for some diseases.’
    • ‘With passive immunity ruled out, perhaps the patient was exposed to a donor unit erroneously labeled Rh negative when it actually was weak D (formerly called Du) positive.’