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.

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The rise of the new subvariant should encourage people, especially those who are older, to get the new vaccine, as outdated booster shots or natural immunity from past infections may not be protective enough.

From Los Angeles Times • Dec. 16, 2023

Prof Openshaw is clear "we are not there yet" with Covid, but "with repeated infection we should build up natural immunity".

From BBC • Dec. 16, 2023

Cleanliness and asepsis must go hand in hand with the purification of the inner man in order to insure natural immunity.

From Nature Cure by Lindlahr, Henry

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