Basic Info

Serotype prediction based on their surface antigens, such as O, H, and K antigens.

More Details

The serotype represents the genetic markers displayed by proteins in blood plasma. Due to the genetic polymorphism of some serum proteins, phenotypic differences arise among individuals. Therefore, serotyping has become an important classification method, especially for many foodborne microorganisms such as Salmonella and Listeria monocytogenes. This method is also widely used in epidemiological investigations. By determining the serotype of bacteria, we can provide a solid basis for antimicrobial therapy. Specifically, through in-depth analysis of the characteristics of bacterial somatic cells, such as the O antigen, cell surface proteins, H antigen, and K antigen, we can accurately classify bacteria based on their serotypes.

What's New

Listeria monocytogenes (LM) is an opportunistic foodborne pathogen responsible for listeriosis in humans. It is capable of surviving in a wide range of natural environments due to the ability to tolerate low temperatures, low pH values, and salt concentrations. LM can be divided into 14 serotypes. The predominant serotypes responsible for over 90 % of human listeriosis cases are 1/2a, 1/2b, and 4b, which have consistently been identified in numerous fresh produce-associated listeriosis outbreaks.

Additional Information

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Literature

Liu L, Mao P, Chen J, et al. Isolation, characterization and genomic analysis of the novel Listeria bacteriophage LMLPA3 as a potential antimicrobial in foods. Food Microbiol. 2025;128:104720. doi:10.1016/j.fm.2024.104720

Shen X, Su Y, Hua Z, et al. Evaluating serotype-specific survival of Listeria monocytogenes and Listeria innocua on wax-coated Granny Smith apples during storage. Int J Food Microbiol. 2025;427:110964. doi:10.1016/j.ijfoodmicro.2024.110964

Angelo KM, Conrad AR, Saupe A, et al. Multistate outbreak of Listeria monocytogenes infections linked to whole apples used in commercially produced, prepackaged caramel apples: United States, 2014-2015. Epidemiol Infect. 2017;145(5):848-856. doi:10.1017/S0950268816003083

Doumith M, Buchrieser C, Glaser P, Jacquet C, Martin P. Differentiation of the major Listeria monocytogenes serovars by multiplex PCR. J Clin Microbiol. 2004;42(8):3819-3822. doi:10.1128/JCM.42.8.3819-3822.2004