se·​ro·​type | \ ˈsir-ə-ˌtīp How to pronounce serotype (audio) , ˈser-\

Definition of serotype

: a group of intimately related microorganisms distinguished by a common set of antigens also : the set of antigens characteristic of such a group

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Examples of serotype in a Sentence

Recent Examples on the Web

This year's outbreak is associated with the Salmonella Uganda serotype (species) of the bacteria. Ryan Prior, CNN, "62 people have been sickened in a salmonella outbreak linked to fresh papayas," 28 June 2019 Rhinovirus, for instance, has over 100 serotypes, Dr. Greninger explains. Colleen Stinchcombe, SELF, "Can You Actually Catch the Same Cold Twice?," 14 Nov. 2018 The vast majority of cVDPVs are caused by serotype 2, one of three variants of the virus. Leslie Roberts, Science | AAAS, "Alarming polio outbreak spreads in Congo, threatening global eradication efforts," 2 July 2018 In fact, there are about 2,500 different salmonella serotypes (which means that the bacteria are very similar to each other but vary slightly in their genetics). Tara Smith, SELF, "Why Does It Seem Like Salmonella Is Popping Up in Every Food These Days?," 28 June 2018 The same thing happens if a person has been infected with two or more serotypes. Jon Cohen, Science | AAAS, "Dengue antibodies might trigger life-threatening infections," 2 Nov. 2017 The Centers for Disease Control and Prevention recommends MCV4 (meningococcal conjugate vaccine 4 serotypes ACWY) at the 11 or 12 year old visit and a booster four to six years later., "Can I protect my child against meningitis?," 26 July 2017 Many of the cases carry the same strain of meningococcus bacteria, known as serotype C, and have been linked through social connections, according to the health department. Soumya Karlamangla,, "Health officials urge meningitis vaccination amid L.A. Pride festival," 9 June 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'serotype.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of serotype

1946, in the meaning defined above

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Last Updated

15 Jul 2019

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The first known use of serotype was in 1946

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More Definitions for serotype


se·​ro·​type | \ ˈsir-ə-ˌtīp How to pronounce serotype (audio) , ˈser- How to pronounce serotype (audio) \

Medical Definition of serotype

 (Entry 1 of 2)

1 : a group of intimately related microorganisms distinguished by a common set of antigens
2 : the set of antigens characteristic of a serotype

Other Words from serotype

serotypic \ ˌsir-​ə-​ˈtip-​ik How to pronounce serotypic (audio) \ adjective
serotypically \ -​i-​k(ə-​)lē How to pronounce serotypically (audio) \ adverb


transitive verb
serotyped; serotyping

Medical Definition of serotype (Entry 2 of 2)

: to determine the serotype of serotype streptococci serotyped isolates from 100 patients

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Rhyming Dictionary: Words that rhyme with serotype

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to complain fretfully

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