Salmonella enterica resistant to antimicrobials in wastewater effluents and black-headed gulls in the Czech Republic, 2012

Masaříková, Martina; Manga, Ivan; Čížek, Alois; Dolejská, Monika; Oravcová, Veronika; Myšková, Petra; Karpíšková, Renata; Literák, Ivan

doi:10.1016/j.scitotenv.2015.10.069

Cited by 32 publications

(23 citation statements)

References 22 publications

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“…In addition, Paratyphi C isolates showed high resistance to erythromycin, tetracycline, neomycin and kanamycin. This resistance pattern were in agreement with several previous reports 22, 23. However, in contrast to several studies which reported high resistance of S .…”

Section: Discussionsupporting

confidence: 93%

“…enterica isolates exhibited resistance to chloramphenicol. This finding is supported by other studies that reported the presence of floR gene in various S. enterica as part of Salmonella pathogenicity island-1 23, 32. The resistance to tetracycline is highly associated with the acquisition and expression of efflux pumps, encoded by tet genes, that reduce the concentration of the drug inside the bacterial cells.…”

Section: Discussionsupporting

confidence: 79%

“…Both tem and oxa-1 genes could not be detected in any isolate which is in contrast to other studies where ampicillin-resistance in S . enterica isolates were attributed to bla TEM-1 and bla oxa-1 5, 17, 23. It was found that the five isolates that exhibited resistance to trimethoprim–sulfamethoxazole were associated with presence of dfrA1 gene ( dfrA14 and dfrB were not detected in any isolate), indicating it is responsible for the resistance.…”

Section: Discussionmentioning

confidence: 98%

“…Arizonae is attributed to other mechanisms. It was reported that dfrA1 is the most prevalence in S. enterica isolates from Europe, whereas the most common dfrA genes in Korea and Australia are dfrA17 and dfrA12 , respectively 23, 29, 30, 31. The resistance to chloramphenicol is highly associated with the acquisition and expression of efflux pumps that reduce toxic levels of the drug in the bacterial cells.…”

Section: Discussionmentioning

confidence: 99%

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Prevalence, serotyping and antimicrobials resistance mechanism of Salmonella enterica isolated from clinical and environmental samples in Saudi Arabia

El-Tayeb

Ibrahim

Al‐Salamah

et al. 2017

Brazilian Journal of Microbiology

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Salmonella is recognized as a common foodborne pathogen, causing major health problems in Saudi Arabia. Herein, we report epidemiology, antimicrobial susceptibility and the genetic basis of resistance among S. enterica strains isolated in Saudi Arabia. Isolation of Salmonella spp. from clinical and environmental samples resulted in isolation of 33 strains identified as S. enterica based on their biochemical characteristics and 16S-rDNA sequences. S. enterica serovar Enteritidis showed highest prevalence (39.4%), followed by S. Paratyphi (21.2%), S. Typhimurium (15.2%), S. Typhi and S. Arizona (12.1%), respectively. Most isolates were resistant to 1st and 2nd generation cephalosporin; and aminoglycosides. Moreover, several S. enterica isolates exhibited resistance to the first-line antibiotics used for Salmonellosis treatment including ampicillin, trimethoprim–sulfamethoxazole and chloramphenicol. In addition, the results revealed the emergence of two S. enterica isolates showing resistance to third-generation cephalosporin. Analysis of resistance determinants in S. enterica strains (n = 33) revealed that the resistance to β-lactam antibiotics, trimethoprim–sulfamethoxazole, chloramphenicol, and tetracycline, was attributed to the presence of carb-like, dfrA1, floR, tetA gene, respectively. On the other hand, fluoroquinolone resistance was related to the presence of mutations in gyrA and parC genes. These findings improve the information about foodborne Salmonella in Saudi Arabia, alarming the emergence of multi-drug resistant S. enterica strains, and provide useful data about the resistance mechanisms.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionsupporting

confidence: 79%

Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

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Prevalence, serotyping and antimicrobials resistance mechanism of Salmonella enterica isolated from clinical and environmental samples in Saudi Arabia

El-Tayeb

Ibrahim

Al‐Salamah

et al. 2017

Brazilian Journal of Microbiology

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“…For instance, a high Salmonella occurrence (up to 75%) in gulls has been found in certain colonies of the western Mediterranean (M. Cerdà‐Cuéllar, unpublished data). In contrast, recent studies report a moderate (13–17%) to low (3%) Salmonella prevalence in other gull species in Australia and Europe (Palmgren et al ., ; Ramos et al ., ; Dolejska et al ., ; Masarikova et al ., ). The difference in Salmonella occurrence between kelp gulls and greater crested terns may be due to the different location of these bird colonies and their feeding habits.…”

Section: Discussionmentioning

confidence: 97%

Seabirds (Laridae) as a source of Campylobacter spp., Salmonella spp. and antimicrobial resistance in South Africa

Moré

Ayats

Ryan

et al. 2017

Environmental Microbiology

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Zoonotic thermophilic Campylobacter and nontyphoidal Salmonella enterica are a major cause of foodborne human gastroenteritis worldwide. There is little information about reservoirs of these zoonotic agents in Africa. Thus, chicks of kelp gulls (Larus dominicanus, n = 129) and greater crested terns (Thalasseus bergii, n = 100) were studied at five colonies on the Western Cape coast (South Africa) during summer 2013/2014. Campylobacter spp. occurrence was 14.0% (CI : 9.9-19.3), with C. jejuni the most frequently isolated species, whilst that of Salmonella was 27.5% (CI : 21.9-33.9) overall, with a higher prevalence in gulls (43.0%, CI : 34.8-52.4) than terns (7.0%, CI : 3.1-14.4). Among the 16 different S. enterica serovars found, Anatum, Enteritidis and Hadar were the most frequent. The same or highly similar pulsed-field gel electrophoresis genotype was found in some Salmonella isolates from seabirds and humans presenting with salmonellosis in Cape Town hospitals. Both Campylobacter and Salmonella isolates exhibited antimicrobial resistance to several agents, including critically important antimicrobials (quinolones, tetracyclines and β-lactams) and multidrug resistance in Salmonella serovars from kelp gulls. Our results highlight the importance of seabirds as reservoirs of Campylobacter and Salmonella resistant strains and their role in the maintenance and transmission of these bacteria in the environment, with implications for public health.

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Antibiotic-Resistant Bacteria in Wildlife

Dolejská

2020

The Handbook of Environmental Chemistry

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Salmonella enterica resistant to antimicrobials in wastewater effluents and black-headed gulls in the Czech Republic, 2012

Cited by 32 publications

References 22 publications

Prevalence, serotyping and antimicrobials resistance mechanism of Salmonella enterica isolated from clinical and environmental samples in Saudi Arabia

Prevalence, serotyping and antimicrobials resistance mechanism of Salmonella enterica isolated from clinical and environmental samples in Saudi Arabia

Seabirds (Laridae) as a source of Campylobacter spp., Salmonella spp. and antimicrobial resistance in South Africa

Antibiotic-Resistant Bacteria in Wildlife

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