immunity gap

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Noun

1. {{lb|en|veterinary medicine}} The time period during which a [[young]] [[mammal]] no longer receives [[effective]] [[immunity]] to [[disease]]s from [[antibody|antibodies]] in its [[mother]]'s [[milk]] but its own [[immune system]] is not fully [[developed]].
2. {{lb|en|epidemiology}} The time period between when an [[individual]]'s or a [[population]]'s immunity to a [[virus]] has [[wane]]d (due to normal decrease in [[immune response]] over time or to the development of a new [[strain]] of the virus) and before a new [[vaccine]] can be given to [[boost]] immunity.
3. {{&lit|en|immunity|gap}}

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.