A 10‐Year Retrospective Review of <i>Salmonella</i> Infections at the Children’s Hospital in London, Ontario

Cellucci, Tania; Seabrook, Jamie A.; Chagla, Yasmine; Bannister, Susan L.; Salvadori, M

doi:10.1155/2010/968960

Cited by 19 publications

(15 citation statements)

References 15 publications

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“…Almost all the isolates recovered from animals and sewage wastes were considered as other Salmonella serotypes because only three important serotypes namely Salmonella Enteritidis, Salmonella Typhimurium and Salmonella Typhi were detected by multiplex PCR employed in the present study. These results are in partial agreement with other authors wherein besides Salmonella Enteritidis and Salmonella Typhimurium, other Salmonella serotypes have also been identified in animals and sewage waste [ 22 , 23 ]. Further, in our study bovine and equine samples failed to yield Salmonella isolates, although earlier studies [ 24 , 25 ] have revealed a higher incidence of Salmonella spp.…”

Section: Discussionsupporting

confidence: 93%

“…Beside this, in the present study, the serotypes namely Salmonella Enteritidis and Salmonella Typhimurium were identified from human infants and fresh vegetables. Similar serotype isolation/identification of Salmonella Enteritidis and Salmonella Typhimurium has also been reported by several authors from human infants and vegetables [ 21 , 22 ]. Almost all the isolates recovered from animals and sewage wastes were considered as other Salmonella serotypes because only three important serotypes namely Salmonella Enteritidis, Salmonella Typhimurium and Salmonella Typhi were detected by multiplex PCR employed in the present study.…”

Section: Discussionsupporting

confidence: 83%

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Isolation and identification of Salmonella from diarrheagenic infants and young animals, sewage waste and fresh vegetables

Nair¹,

Balasaravanan²,

Malik³

et al. 2015

Vet World

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Aim:This study was carried out to determine the prevalence, distribution, and identification of Salmonella serotypes in diarrheagenic infants and young animals, including sewage waste and fresh vegetables.Materials and Methods:A total of 550 samples were processed for the isolation of Salmonella spp., using standard microbiological and biochemical tests. Further polymerase chain reaction (PCR) detection of Salmonella genus was carried out using self-designed primers targeting invA gene and thereafter identification of important serotypes namely Salmonella Enterica serovar Typhimurium, Salmonella Enterica serovar Enteritidis, Salmonella Enterica serovar Typhi was performed using published standardized multiplex PCR.Results:An overall low prevalence of 2.5% (14/550) was observed. The observed prevalence of Salmonella spp. in diarrheagenic infants was 1.2% (05/400), diarrheagenic young animals 4% (02/50), sewage waste 10% (05/50), and fresh vegetables 4% (02/50), respectively. In diarrheagenic infants, of the five Salmonella isolates identified, two were Salmonella Typhimurium, two Salmonella Enteritidis, and one was unidentified and hence designated as other Salmonella serovar. All the Salmonella isolates identified from diarrheagenic young animals and sewage waste belonged to other Salmonella serovar, whereas, of the two isolates recovered from fresh vegetables, one was identified as other Salmonella serovar, and one as Salmonella Typhimurium, respectively.Conclusion:Isolation of Salmonella spp. especially from sewage waste and fresh vegetable is a matter of great concern from public health point of view because these sources can accidentally serve as a potential vehicle for transmission of Salmonella spp. to animals and human beings.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionsupporting

confidence: 83%

Isolation and identification of Salmonella from diarrheagenic infants and young animals, sewage waste and fresh vegetables

Nair¹,

Balasaravanan²,

Malik³

et al. 2015

Vet World

View full text Add to dashboard Cite

show abstract

“…Previous studies identified several risk factors for S . Enteritidis infections for this age group, including international travel [51,52], riding in shopping carts and exposure to raw meat and poultry products [53], and contact with reptiles [43,52,54] and cats [43]. In our study, adults 60 years of age and older had the lowest IRR among all age groups, which is in contrast with other studies [29,55].…”

Section: Discussioncontrasting

confidence: 82%

Incidence, distribution, seasonality, and demographic risk factors of Salmonella Enteritidis human infections in Ontario, Canada, 2007–2009

et al. 2013

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BackgroundIn Canada, surveillance systems have highlighted the increasing trend of Salmonella enterica serovar Enteritidis (S. Enteritidis) human infections. Our study objectives were to evaluate the epidemiology of S. Enteritidis infections in Ontario using surveillance data from January 1, 2007 through December 31, 2009.MethodsAnnual age-and-sex-adjusted incidence rates (IRs), annual and mean age-adjusted sex-specific IRs, and mean age-and-sex-adjusted IRs by public health unit (PHU), were calculated for laboratory-confirmed S. Enteritidis cases across Ontario using direct standardization. Multivariable Poisson regression with PHU as a random effect was used to estimate incidence rate ratios (IRRs) of S. Enteritidis infections among years, seasons, age groups, and sexes.ResultsThe annual age-and-sex-adjusted IR per 100,000 person-years was 4.4 [95% CI 4.0-4.7] in 2007, and 5.2 [95% CI 4.8-5.6] in both 2008 and 2009. The annual age-adjusted sex-specific IRs per 100,000 person-years ranged from 4.5 to 5.5 for females and 4.2 to 5.2 for males. The mean age-adjusted sex-specific IR was 5.1 [95% CI 4.8-5.4] for females and 4.8 [95% CI 4.5-5.1] for males. High mean age-and-sex-adjusted IRs (6.001-8.10) were identified in three western PHUs, one northern PHU, and in the City of Toronto. Regression results showed a higher IRR of S. Enteritidis infections in 2009 [IRR = 1.18, 95% CI 1.06-1.32; P = 0.003] and 2008 [IRR = 1.17, 95% CI 1.05-1.31; P = 0.005] compared to 2007. Compared to the fall season, a higher IRR of S. Enteritidis infections was observed in the spring [IRR = 1.14, 95% CI 1.01-1.29; P = 0.040]. Children 0–4 years of age (reference category), followed by children 5–9 years of age [IRR = 0.64, 95% CI 0.52-0.78; P < 0.001] had the highest IRRs. Adults ≥ 60 years of age and 40–49 years of age [IRR = 0.31, 95% CI 0.26-0.37; P < 0.001] had the lowest IRRs.ConclusionsThe study findings suggest that there was an increase in the incidence of S. Enteritidis infections in Ontario from 2007 to 2008–2009, and indicate seasonal, demographic, and regional differences, which warrant further public health attention.

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“…This serovar has not been isolated so far from animals or humans in Grenada. However, it has been reported as a cause of clinical salmonellosis with positive blood cultures in children at the Children's Hospital, London, Ontario, Canada (Cellucci et al 2010), and has been implicated in human infection from feral pigeons. It also has been isolated from beef samples in Morocco and from faecal samples of kangaroos in Australia (Haag-Wackernagel & Moch 2004;Bouchrif et al 2009;Potter et al 2011).…”

Section: Discussionmentioning

confidence: 99%

Serovars and antimicrobial resistance of non‐typhoidal Salmonella isolated from non‐diarrhoeic dogs in Grenada, West Indies

Amadi

Hariharan

Arya

et al. 2017

Veterinary Medicine & Sci

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Non‐typhoidal salmonellosis remains an important public health problem worldwide. Dogs may harbour Salmonella in their intestines and can easily shed Salmonella in the environment with the possibility of transmission to humans. Thus, monitoring is essential to understand the role of dogs in zoonotic transmission. The objectives of this study were to determine the shedding of Salmonella by owned, apparently healthy dogs in Grenada, West Indies, to identify the serovars, and to examine their antimicrobial susceptibility profiles. Faecal samples collected during August to October, 2016 from 144 non‐diarrhoeic owned dogs were examined by enrichment and selective culture for the presence of Salmonella spp. Eight (5.6%) of the tested animals were culture positive, yielding 35 Salmonella isolates that belonged to six serovars of Salmonella enterica subspecies enterica. These were serovars Arechavaleta from two dogs, Arechavaleta and Montevideo from one dog, and Javiana, Rubislaw, Braenderup and Kiambu from one dog each. All these serovars have been reported as causes of human salmonellosis globally. Antimicrobial susceptibility tests on 35 isolates showed absence of resistance to the currently used drugs for cases of human salmonellosis, including ciprofloxacin and cefotaxime. One isolate (2.9%) was resistant to neomycin, two isolates (5.7%) showed intermediate susceptibility to neomycin, and another (2.9%) had intermediate susceptibility to tetracycline. This is the first report of isolation and antimicrobial susceptibilities of non‐typhoidal Salmonella serovars from dogs in Grenada. This study shows that dogs in Grenada may be involved in the epidemiology of salmonellosis.

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A 10‐Year Retrospective Review of Salmonella Infections at the Children’s Hospital in London, Ontario

Cited by 19 publications

References 15 publications

Isolation and identification of Salmonella from diarrheagenic infants and young animals, sewage waste and fresh vegetables

Isolation and identification of Salmonella from diarrheagenic infants and young animals, sewage waste and fresh vegetables

Incidence, distribution, seasonality, and demographic risk factors of Salmonella Enteritidis human infections in Ontario, Canada, 2007–2009

Serovars and antimicrobial resistance of non‐typhoidal Salmonella isolated from non‐diarrhoeic dogs in Grenada, West Indies

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