: infection following recovery from or superimposed on infection of the same type

Examples of reinfection in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Although reinfection from one's own toothbrush is uncommon for most healthy people, some individuals have reason to be more cautious. Daryl Austin, USA Today, 20 July 2026 Despite warnings from medical experts that the toddler remained medically vulnerable and at high risk of reinfection, immigration officers returned Amalia and her mother to the detention center, the lawsuit says. Mike Hixenbaugh, NBC news, 7 Feb. 2026 Always clean up the peony beds well in the fall to help prevent reinfection next year. Mary Marlowe Leverette, Southern Living, 5 Oct. 2025 Cut back plants with diseased foliage, such as peonies with powdery mildew, to prevent reinfection. Special To The Denver Post, Denver Post, 5 Oct. 2025 See All Example Sentences for reinfection

Word History

First Known Use

1661, in the meaning defined above

Time Traveler
The first known use of reinfection was in 1661

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Cite this Entry

“Reinfection.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/reinfection. Accessed 28 Jul. 2026.

Kids Definition

reinfection

noun
: infection following recovery from another infection of the same kind
reinfect
ˌre-ən-ˈfekt
verb

Medical Definition

reinfection

noun
: infection following recovery from or superimposed on a previous infection of the same type
rescreening aimed at detecting reinfection following treatmentDiana Mahoney
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