SALMONELLA | Detection by Immunoassays

Dwivedi, Hari P.; Devulder, Grégory; Juneja, Vijay K.

doi:10.1016/b978-0-12-384730-0.00299-8

Cited by 2 publications

(2 citation statements)

References 25 publications

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“…Over time, the ability to identify specific antigens has enabled to group Salmonella into over 50 serogroups, described in the Kauffmann–White scheme. The differences among somatic antigens seem to be related to the presence of particular prophages that induce their expression [ 28 ]. The difficulties usually encountered in Salmonella typing can be attributed to the presence of capsular antigen or to a stressful isolation environment.…”

Section: Discussionmentioning

confidence: 99%

Occurrence of a New Variant of Salmonella Infantis Lacking Somatic Antigen

Alessiani,

La Bella,

Donatiello

et al. 2023

Microorganisms

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Salmonella Infantis is one of the most frequent serovars reported in broilers and is also regularly identified in human salmonellosis cases, representing a relevant public health problem. In the laboratories of the Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata (IZSPB), six Salmonella Infantis strains with antigenic formula -:r:1,5 have been isolated from the litter and carcass of broilers between 2018 and 2022. The strains were investigated to evaluate their phenotype, antibiotic resistance and genomic profiles. Genomic analysis confirmed that the isolates belonged to the Infantis serotype and to the sequence type ST32. Moreover, all strains showed a multidrug-resistant (MDR) profile and were characterised by the presence of the IncFIB plasmid incompatibility group. Three strains had the blaCTX-M-1 gene, and one of them carried IncX1. The presence of this new variant of S. Infantis is particularly relevant because it could expand the landscape of the S. Infantis population. The absence of the somatic antigen could pose a problem in both isolation and serotyping and a consequent public health concern due to the spread of Salmonella infection.

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Section: Discussionmentioning

confidence: 99%

Occurrence of a New Variant of Salmonella Infantis Lacking Somatic Antigen

Alessiani,

La Bella,

Donatiello

et al. 2023

Microorganisms

View full text Add to dashboard Cite

show abstract

“…For the sole case of Salmonella , the first cause of non-diarrheal foodborne deaths in the world, several tens of kits are commercially available, the majority being based on immunorecognition. 12 , 13 The cost and complexity of current detection methods, either based on plating or on molecular assays, however, still strongly limit their extended use in routine practice.…”

Section: Introductionmentioning

confidence: 99%