How to Use passive immunity in a Sentence

passive immunity

noun
  • The idea is relatively simple, and based on the concept of passive immunity.
    — Alice Park, Time, 26 Mar. 2020
  • In passive immunity, a person doesn’t make their own antibodies but receives them from another source.
    — Los Angeles Times, 3 Dec. 2020
  • How long this passive immunity lasts helps inform the immunization schedule.
    — Carolyn L. Todd, SELF, 26 Aug. 2019
  • Again, this suggests vaccinated mothers could be giving their babies passive immunity against the virus.
    — Washington Post, 1 Feb. 2022
  • Other vaccines cause such temporary passive immunity in infants, including the shot for measles.
    — BostonGlobe.com, 13 May 2021
  • One short-term but potentially lifesaving strategy that has not yet been mentioned in the show involves passive immunity.
    — David Warmflash, Discover Magazine, 17 July 2014
  • Some of the monoclonal antibodies made to give people passive immunity against the virus have also stopped working against the new variants.
    — Brenda Goodman, CNN, 1 Sep. 2022
  • Thus, for their first 6 months, babies are protected against the disease, and become vulnerable as that passive immunity wanes.
    — Maryn McKenna, Wired, 6 July 2021
  • It was later understood this temporary protective effect was due to passive immunity.
    — Miriam Fauzia, USA TODAY, 29 Dec. 2020
  • But passive immunity doesn't last as long as active immunity, and loses effectiveness within a few weeks or months, per the CDC.
    — Leah Groth, Health, 17 Nov. 2023
  • Researchers say this points to the need to have products to protect children once the passive immunity from monoclonal antibodies or maternal immunization wears off.
    — Tara Haelle, Scientific American, 23 Sep. 2025
  • Mothers typically pass antibodies to their newborns through the placenta during the last three months of pregnancy, which provides the baby with passive immunity.
    — Maria Pasquini, PEOPLE.com, 22 Mar. 2021
  • But there is also the possibility the vaccine might even confer benefits to the breastfeeding child through passive immunity, according to the ABM.
    — Miriam Fauzia, USA TODAY, 29 Dec. 2020
  • Nirsevimab provides passive immunity against RSV—giving babies antibodies to fight the virus that their immune systems could not make on their own without an effective vaccine.
    — Tara Haelle, Scientific American, 23 Sep. 2025
  • While active immunity occurs when an individual produces antibodies to a disease through his or her own immune system, passive immunity is provided when a person is given antibodies.
    — Leah Groth, Health, 17 Nov. 2023
  • Finally, while working on a vaccine, Earth’s health organizations and the crew and scientists of The Last Ship would be considering strategies other than active and passive immunity – namely those involving drug therapy.
    — David Warmflash, Discover Magazine, 17 July 2014

Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'passive immunity.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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