scholarly journals Excess of infections due to a multi-drug sensitive Salmonella enterica serotype Typhimurium in France in June 2008

2008 ◽  
Vol 13 (44) ◽  
Author(s):  
F Grandesso ◽  
N Jourdan-da Silva ◽  
S Le Hello ◽  
S Roussel ◽  
S Rasson ◽  
...  
Keyword(s):  
The Netherlands ◽  
Salmonella Typhimurium ◽  
Salmonella Enterica ◽  
Food Source ◽  
Pfge Profile ◽  
Typhimurium Strain ◽  
Specific Food

An unusually high number of cases of Salmonella Typhimurium was reported in France in June 2008. In the course of epidemiological investigations 112 cases were ascertained, of whom 75 were interviewed. Subtyping by PFGE and MLVA identified a strain named ""majority profile"". Subtyping results were available for 45 interviewed cases, 30 of whom (majority below 15 years of age) were found to be infected with the majority profile strain. Evidence suggested the occurrence of an outbreak due to a monoclonal S. Typhimurium strain with the single PFGE profile XTYM-50. Cases with identical PFGE profile were also detected in Switzerland but no link with outbreaks occurring in the same period in Denmark and in the Netherlands was found. Contamination of a product distributed nationally was suggested as the cause of the outbreak but investigations did not reveal any specific food source.

scholarly journals Explosive increase of multiresistant Salmonella Typhimurium DT104 in 2001 in the Netherlands

2001 ◽  
Vol 5 (50) ◽  
Author(s):  
W van Pelt
Keyword(s):  
Public Health ◽  
The Netherlands ◽  
Salmonella Typhimurium ◽  
Salmonella Enterica ◽  
Phage Type ◽  
Serovar Typhimurium

From September 2000 and up until the end of that year, the national salmonella centre at the Rijksinstituut voor Volksgezondheid en Milieu (RIVM, the National Institute of Public Health and the Environment) has noted an explosive increase of isolates of Salmonella enterica subspecies enterica serovar Typhimurium definitive phage type (DT) 104 from humans, which has since plateaued at a level double that of previous years (1).

scholarly journals Outbreak of Salmonella enterica serovar Typhimurium in Switzerland, May – June 2008, implications for production and control of meat preparations

2008 ◽  
Vol 13 (44) ◽  
Author(s):  
H Schmid ◽  
H Hächler ◽  
R Stephan ◽  
A Baumgartner ◽  
K Boubaker
Keyword(s):  
Food Safety ◽  
Salmonella Typhimurium ◽  
Food Source ◽  
Salmonella Enterica Serovar Typhimurium ◽  
Pfge Typing ◽  
Safety Regulations ◽  
Serovar Typhimurium ◽  
And Control ◽  
Minced Meat ◽  
Specific Food

An increased number of Salmonella Typhimurium cases were reported in Switzerland between May and June 2008. Investigations involved 72 cases. Results of PFGE typing identified several outbreak strains, the dominating one present in 43 of the 72 isolates. Strains affecting one third of the cases were also found in animal samples, in particular pork. However, no specific food source could be identified. Outbreaks described in this paper highlight the importance of food safety regulations such as those on minced meat and meat preparations issued by the European Commission and adopted by Switzerland into the national law.

scholarly journals Genetic Control of Histidine Degradation in Salmonella typhimurium, Strain LT-2

1969 ◽  
Vol 244 (19) ◽  
pp. 5382-5391
Author(s):  
Harriet K. Meiss ◽  
Winston J. Brill ◽  
Boris Magasanik
Keyword(s):  
Salmonella Typhimurium ◽  
Genetic Control ◽  
Typhimurium Strain

scholarly journals ATIVIDADE ANTIMICROBIANA DE MICRORGANISMOS ISOLADOS DE GRÃOS DE KEFIR

2018 ◽  
Vol 19 (0) ◽  
Author(s):  
Priscila Alves Dias ◽  
Daiani Teixeira Silva ◽  
Cláudio Dias Timm
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Listeria Monocytogenes ◽  
Salmonella Typhimurium ◽  
Salmonella Enterica ◽  
Escherichia Coli O157 ◽  
E Coli

Resumo Kefir é o produto da fermentação do leite pelos grãos de kefir. Esses grãos contêm uma mistura simbiótica de bactérias e leveduras imersas em uma matriz composta de polissacarídeos e proteínas. Muitos benefícios à saúde humana têm sido atribuídos ao kefir, incluindo atividade antimicrobiana contra bactérias Gram positivas e Gram negativas. A atividade antimicrobiana de 60 microrganismos isolados de grãos de kefir, frente à Escherichia coli O157:H7, Salmonella enterica subsp. enterica sorotipos Typhimurium e Enteritidis, Staphylococcus aureus e Listeria monocytogenes, foi estudada através do teste do antagonismo. A ação antimicrobiana dos sobrenadantes das bactérias ácido-lácticas que apresentaram atividade no teste do antagonismo foi testada. O experimento foi repetido usando sobrenadantes com pH neutralizado. Salmonella Typhimurium e Enteritidis sobreviveram por 24 horas no kefir em fermentação. E. coli O157:H7, S. aureus e L. monocytogenes foram recuperados até 72 horas após o início da fermentação. Todos os isolados apresentaram atividade antimicrobiana contra pelo menos um dos patógenos usados no teste do antagonismo. Sobrenadantes de 25 isolados apresentaram atividade inibitória e três mantiveram essa atividade com pH neutralizado. As bactérias patogênicas estudadas sobreviveram por tempo superior àquele normalmente utilizado para a fermentação do kefir artesanal, o que caracteriza perigo em potencial para o consumidor quando a matéria-prima não apresentar segurança sanitária. Lactobacillus isolados de grãos de kefir apresentam atividade antimicrobiana contra cepas de E. coli O157:H7, Salmonella sorotipos Typhimurium e Enteritidis, S. aureus e L. monocytogenes além daquela exercida pela diminuição do pH.

scholarly journals Characterization of a Laboratory-Derived, High-Level Ampicillin-Resistant Salmonella enterica Serovar Typhimurium Strain That Caused Meningitis in an Infant

2002 ◽  
Vol 46 (5) ◽  
pp. 1604-1606 ◽  
Author(s):  
Cheng-Hsun Chiu ◽  
Chishih Chu ◽  
Lin-Hui Su ◽  
Wan-Yu Wu ◽  
Tsu-Lan Wu
Keyword(s):  
Cerebrospinal Fluid ◽  
Salmonella Enterica ◽  
Salmonella Enterica Serovar Typhimurium ◽  
Cloning Vector ◽  
Typhimurium Strain ◽  
Serovar Typhimurium ◽  
High Level ◽  
Lactamase Gene

ABSTRACT A Salmonella enterica serovar Typhimurium strain that harbored a plasmid carrying a TEM-1-type β-lactamase gene was isolated from the blood and cerebrospinal fluid of an infant with meningitis. This 3.2-kb plasmid was further characterized to be a nonconjugative pGEM series cloning vector containing a foreign insert. The strain was likely laboratory derived and contaminated the environment before it caused the infection.

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