Prevalence of<i>Salmonella enterica</i>and Shiga toxin-producing<i>Escherichia coli</i>in zoo animals from Chile

Marchant, Paulina; Hidalgo-Hermoso, Ezequiel; Espinoza, Karen; Retamal, Patricio

doi:10.4142/jvs.2016.17.4.583

Cited by 9 publications

(9 citation statements)

References 15 publications

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“…Coincident with our study, other studies carried out in Chile have found these common serovars to be Enteritidis, Typhimurium and Infantis (serogroup D, B and C1) [ 15 , 18 , 22 , 24 , 27 , 28 , 29 , 30 ]. However, S. Enteritidis has represented the highest percentage of isolates [ 15 , 16 , 17 , 18 , 19 , 22 ]. In Chile, the Institute of Public Health has reported that S. Enteritidis is the most common serovar associated with human illnesses [ 27 , 28 ], accounting for 61% of all Salmonella cases [ 27 ].…”

Section: Discussionmentioning

confidence: 99%

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Screening the Presence of Non-Typhoidal Salmonella in Different Animal Systems and the Assessment of Antimicrobial Resistance

Rivera

Allel

Dueñas

et al. 2021

Animals

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Salmonella is a major bacterial foodborne pathogen that causes the majority of worldwide food-related outbreaks and hospitalizations. Salmonellosis outbreaks can be caused by multidrug-resistant (MDR) strains, emphasizing the importance of maintaining public health and safer food production. Nevertheless, the drivers of MDR Salmonella serovars have remained poorly understood. In this study, we compare the resistance profiles of Salmonella strains isolated from 4047 samples from domestic and wild animals in Chile. A total of 106 Salmonella strains (2.61%) are isolated, and their serogroups are characterized and tested for susceptibility to 16 different antimicrobials. The association between antimicrobial resistance (AMR) and a subset of independent variables is evaluated using multivariate logistic models. Our results show that 47 antimicrobial-resistant strains were found (44.3% of the total strains). Of the 47, 28 correspond to single-drug resistance (SDR = 26.4%) and 19 are MDR (17.9%). S. Enteritidis is highly persistent in animal production systems; however, we report that serogroup D strains are 18 times less likely to be resistant to at least one antimicrobial agent than the most common serogroup (serogroup B). The antimicrobials presenting the greatest contributions to AMR are ampicillin, streptomycin and tetracycline. Additionally, equines and industrial swine are more likely to acquire Salmonella strains with AMR. This study reports antimicrobial-susceptible and resistant Salmonella in Chile by expanding the extant literature on the potential variables affecting antimicrobial-resistant Salmonella.

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Section: Discussionmentioning

confidence: 99%

“…In Chile, the presence of Salmonella strains has been reported in different sources including water used for irrigation [ 14 ], backyard flocks [ 15 ], wild animals [ 16 , 17 , 18 , 19 ] and chicken eggs [ 18 ]. One study depicted a prevalence of MDR Salmonella of 13% in 35 strains obtained from irrigation water [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

Screening the Presence of Non-Typhoidal Salmonella in Different Animal Systems and the Assessment of Antimicrobial Resistance

Rivera

Allel

Dueñas

et al. 2021

Animals

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“…(20)(21)(22)(23)(24). Although infection of humans with salmonella serovars in zoos is not common, there is some published data demonstrating the outbreaks of non-typhoid Salmonellosis in zoo visitors.…”

Section: Discussionmentioning

confidence: 99%

Importance of Wild Species Kept in Captivity as Reservoirs of Salmonella Serotypes for Human in Petting Exhibitions and Zoo in Iran with Focus on Antimicrobial Resistance

Staji

Zandiar

2017

Macedonian Veterinary Review

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Salmonella spp. is the leading cause of zoonotic enteric diseases wich represents a public health concern worldwide. The incidence of zoo-associated salmonellosis is rather high due to the high prevalence and shedding of this bacterium from wild animals specially kept in stressful conditions. To determine the potential public health risk presented by zoo animals in Semnan, we investigated the prevalence of Salmonella serovars Enteritidis and Typhimurium among wild animal species kept in the zoo and pet shops. Totally, 152 fecal samples from species in the zoo and pet shops were collected and Salmonella prevalence and identification was assessed via standard bacteriologic culture methods, serotyping, multiplex-PCR and antimicrobial susceptibility testing. Overall, 21% (32/152) of the samples were confirmed positive for Salmonella and serotyping showed 12.5% (19/32) Salmonella serovar Enteritidis and 8.5% (13/32) serovar Typhimurium, respectively. All the Salmonella isolates were sensitive to Chloramphenicole, Flurefenicole, Meropenem, Ceftizoxime, Imipenem and Ampicillin, while resistance was observed in the case of Nalidixic acid (78%) as the highest resistance, Streptomycin (28%), Oxytetracycline, Neomycin, Furazolidone (each one 15%) and Lincospectin (9.3%). The high occurrence of multidrug resistance Salmonella in zoo and pet animals represents a potential threat to public health and requires strict surveillance and application of hygienic criteria.

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“…Other studies investigating the prevalence of STEC strains as a public health risk have screened and isolated STEC strains from different sources, including synanthropic animals. STEC isolates were identified ( stx1 and/or stx2 positive but eae negative) in the order Artiodactyla in zoo animals from Chile, isolating STEC for the first time from Thomson’s gazelle ( Eudorcas thomsonii ) [25]. Other studies have detected STEC strains in stool samples from asymptomatic children and domestic animals (cattle, a guinea pig, and a chicken) from households in a semirural community in Ecuador; however, STEC symptomatic disease in humans seems to be rare in this country [26].…”

Section: Discovery Of Stec Serotypes and Novel Virulence Factors Imentioning

confidence: 99%

Recent Advances in Shiga Toxin-Producing Escherichia coli Research in Latin America

et al. 2018

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Pathogenic Escherichia coli are known to be a common cause of diarrheal disease and a frequently occurring bacterial infection in children and adults in Latin America. Despite the effort to combat diarrheal infections, the south of the American continent remains a hot spot for infections and sequelae associated with the acquisition of one category of pathogenic E. coli, the Shiga toxin-producing E. coli (STEC). This review will focus on an overview of the prevalence of different STEC serotypes in human, animals and food products, focusing on recent reports from Latin America outlining the recent research progress achieved in this region to combat disease and endemicity in affected countries and to improve understanding on emerging serotypes and their virulence factors. Furthermore, this review will highlight the progress done in vaccine development and treatment and will also discuss the effort of the Latin American investigators to respond to the thread of STEC infections by establishing a multidisciplinary network of experts that are addressing STEC-associated animal, human and environmental health issues, while trying to reduce human disease. Regardless of the significant scientific contributions to understand and combat STEC infections worldwide, many significant challenges still exist and this review has focus in the Latin American efforts as an example of what can be accomplished when multiple groups have a common goal.

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Prevalence ofSalmonella entericaand Shiga toxin-producingEscherichia coliin zoo animals from Chile

Cited by 9 publications

References 15 publications

Screening the Presence of Non-Typhoidal Salmonella in Different Animal Systems and the Assessment of Antimicrobial Resistance

Screening the Presence of Non-Typhoidal Salmonella in Different Animal Systems and the Assessment of Antimicrobial Resistance

Importance of Wild Species Kept in Captivity as Reservoirs of Salmonella Serotypes for Human in Petting Exhibitions and Zoo in Iran with Focus on Antimicrobial Resistance

Recent Advances in Shiga Toxin-Producing Escherichia coli Research in Latin America

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