Molecular characterization and toxigenic profiles of bacillus cereus isolates from foodstuff and food poisoning outbreaks in Brazil

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dc.creatorLuís Renato dos Santos Mascarenhas
dc.creatorAdriana Marcos Vivoni
dc.creatorRenata Gomes Caetano
dc.creatorLeonardo Alves Rusak
dc.creatorVerônica Ortiz Alvarenga
dc.creatorInayara Cristina Alves Lacerda
dc.date.accessioned2025-08-27T21:02:36Z
dc.date.accessioned2025-09-08T23:32:03Z
dc.date.available2025-08-27T21:02:36Z
dc.date.issued2024-03
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
dc.format.mimetypepdf
dc.identifier.doi10.1007/s42770-02401283-4
dc.identifier.issn15178382
dc.identifier.urihttps://hdl.handle.net/1843/84642
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.rightsAcesso Aberto
dc.subjectAlimentos
dc.subjectIntoxicação
dc.subject.otherBacillus cereus sensu stricto (s.s.)
dc.subject.otherIntoxicação alimentar
dc.subject.otherPanC group
dc.subject.otherGenes codificadores de toxina
dc.subject.otherGenes codificadores de virulência
dc.titleMolecular characterization and toxigenic profiles of bacillus cereus isolates from foodstuff and food poisoning outbreaks in Brazil
dc.typeArtigo de periódico
local.citation.epage1701
local.citation.issue2
local.citation.spage1693
local.citation.volume55
local.description.resumoBacillus cereus sensu stricto (s.s.) is a well-known foodborne pathogen that produces a range of enterotoxins and is able to cause two different types of foodborne illnesses—the emetic and the diarrheal syndromes. In this study, 54 B. cereus s.s. strains isolated from foodstuff and foods involved in food poisoning outbreaks were characterized according to the presence of toxin-encoding genes, virulence-encoding genes, and panC typing. Most isolates were assigned to panC groups IV (61.1%) and III (25.9%), but members of groups II and V could also be found. Investigation of specific alleles revealed high numbers of isolates carrying toxin and other virulence genes including nheA (100%), nheB (100%), hblA (79.6%), hblC (79.6%), hblD (74.1%), cytK-2 (61.1%), clo (100%), pc-plc (75.9%), sph (68.5%), pi-plc (66.6%), hlyIII (62.9%), and hlyII (24.1%). All isolates were negative for ces and cytK-1. In summary, we detected various enterotoxin and other virulence factor genes associated with diarrheal syndrome in strains analyzed, implicated or not with food poisoning. Furthermore, the most isolates analyzed belong to high-risk phylogenetic groups’ panC types III and IV. Our study provides a convenient molecular scheme for characterization of B. cereus s.s. strains responsible for food poisoning outbreaks in order to improve the monitoring and investigation and assess emerging clusters and diversity of strains.
local.publisher.countryBrasil
local.publisher.departmentFAR - DEPARTAMENTO DE ALIMENTOS
local.publisher.initialsUFMG
local.url.externahttps://pmc.ncbi.nlm.nih.gov/articles/PMC11153380/

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