Salmonella: Invasion, Evasion &amp; Persistence

Chami, Belal; Bao, Shisan

doi:10.5772/30443

Cited by 2 publications

(2 citation statements)

References 183 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Salmonella is one of the most problematic foodborne and zoonotic pathogens that threaten general health and well-being [ 1 ]. Salmonella remains the leading cause of bacterial gastroenteritis and is also one of the most extensively studied and well-characterized bacterial species [ 2 ]. In spite of that Salmonella continue to be remains an important human pathogen and a serious public health concern worldwide [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

Characterization of virulence factors of Salmonella isolated from human stools and street food in urban areas of Burkina Faso

et al. 2021

View full text Add to dashboard Cite

Background This study was undertaken to identify and functionally characterize virulence genes from Salmonella isolates in street food and stool cultures. From February 2017 to May 2018, clinical and food Salmonella strains were isolated in three regions in Burkina Faso. Salmonella was serotyped according to the White-Kauffmann-Le Minor method, and polymerase chain reaction (PCR) was used to detec invA, spvR, spvC, fimA and stn virulence genes commonly associated with salmonellosis in Sub-Saharan Africa. Results A total of 106 Salmonella isolates (77 human stools; 14 sandwiches) was analyzed using a serological identification with an O-group test reagent. The presence of Salmonella was confirmed in 86% (91/106) of the samples were reactive (OMA-positive/OMB-positive). Salmonella serogroup O:4,5 was the most common serogroup detected (40%; 36/91). Salmonella Enteritidis and Typhimurium represented 5.5% (5/91) and 3.3% (3/91), respectively and were identified only from clinical isolates. Furthermore, 14 serotypes of Salmonella (12/91 human strains and 2/15 sandwich strains) were evocative of Kentucky/Bargny serotype. For the genetic profile, 66% (70/106) of the Salmonella had invA and stn genes; 77.4% (82/106) had the fimA gene. The spvR gene was found in 36.8% (39/106) of the isolates while 48.1% (51/106) had the spvC gene. Among the identified Salmonella Enteritidis and Salmonella Typhimurium isolated from stools, the virulence genes detected were invA (3/5) versus (2/3), fimA (4/5) versus (3/3), stn (3/5) versus (2/3), spvR (4/5) versus (2/3) and spvC (3/5) versus (2/3), respectively. Conclusion This study reports the prevalence of Salmonella serotypes and virulence genes in clinical isolates and in street foods. It shows that food could be a significant source of Salmonella transmission to humans. Our results could help decision-making by the Burkina Faso health authority in the fight against street food-related diseases, in particular by training restaurateurs in food hygiene.

show abstract

Section: Introductionmentioning

confidence: 99%

Characterization of virulence factors of Salmonella isolated from human stools and street food in urban areas of Burkina Faso

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Since, this pathogen has been recognized as responsible for a wide range of outbreak (Sir William, 1956;Puglisi and Maida, 1969;Small and Sharp, 1979;Unicomb et al, 2005;Angulo et al, 2006;Kunwar et al, 2013). While Salmonella remains the leading cause of bacterial gastroenteritis, it is also one of the most extensively studied and well characterized bacterial species (Chami and Bao, 2009). However, despite a vastly greater understanding of their structure, relationships and natural history, Salmonella remains what they were in 1900: an unresolved conundrum in microbiology, epidemiology, and public health (Hardy, 2004).…”

Section: Introductionmentioning

confidence: 99%

Retrospective study of the contamination of exported sesame by Salmonella species from 2007 to 2017 in Burkina Faso

CompaorÃ¹,

YougbarÃ²,

DembÃ©lÃ©³

et al. 2020

Afr. J. Agric. Res.

View full text Add to dashboard Cite

Sesame (Sesamum indicum) is one of the oldest and most traditional oilseed crops, valued for its highquality seed oil. This culture was introduced in Burkina Faso at the beginning of the 20th century where it occupies a place of cash crop. The majority of sesame produced in Burkina Faso is export oriented. However, the contamination by Salmonella remains an unsolved problem. This retrospective study was carried out in order to assess the microbiological safety of sesame samples received at the Laboratoire National de Santé Publique between 2007 and 2017. Out of 359 samples unevenly distributed according to months, 26.46% showed the presence of Salmonella species. The persistence of this food borne pathogen in sesame is a strong signal that new strategies of growing, harvesting and postharvest and special attention and emphasis on control measures must be given to the chain of production of this commodity in a view of its economic and medical impact.

show abstract

Salmonella: Invasion, Evasion & Persistence

Cited by 2 publications

References 183 publications

Characterization of virulence factors of Salmonella isolated from human stools and street food in urban areas of Burkina Faso

Characterization of virulence factors of Salmonella isolated from human stools and street food in urban areas of Burkina Faso

Retrospective study of the contamination of exported sesame by Salmonella species from 2007 to 2017 in Burkina Faso

Contact Info

Product

Resources

About