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natural immunity

American

noun

immunity that is present without prior immunization.

natural immunity British

noun

immunity with which an individual is born, which has a genetic basis

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"It's going to have to run through the community. Until they get that natural immunity, it'll just keep running its course."

From BBC • Apr. 12, 2025

McGill University scientists have discovered that pregnancy may trigger a natural immunity to boost protection against severe flu infection.

From Science Daily • Dec. 2, 2024

He argued against lockdowns and masking for children, questioned the benefits of vaccine boosters, and predicted incorrectly that populations would quickly acquire natural immunity to SARS-CoV-2.

From Science Magazine • Nov. 25, 2024

The letter touted the benefits of natural immunity and promoted the use of “early treatments” to prevent the disease.

From Los Angeles Times • Oct. 19, 2023

Science shows that 95 percent of the human population has natural immunity to Hansen’s disease.

From "At Last She Stood" by Erin Entrada Kelly

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023