scholarly journals Molecular diversity and antibiotic resistance gene profile of Salmonella enterica serovars isolated from humans and food animals in Lagos, Nigeria

2019 ◽  
Vol 66 (4) ◽  
pp. 509-527 ◽  
Author(s):  
Abraham Ajayi ◽  
Stella Ifeanyi Smith ◽  
Julien Coulibaly Kalpy ◽  
Ibidunni Oreoluwa Bode-Sojobi ◽  
Yao Kouamé René ◽  
...  
2020 ◽  
Vol 49 (3) ◽  
pp. 754-761 ◽  
Author(s):  
Morgan A. Meyers ◽  
Lisa M. Durso ◽  
John E. Gilley ◽  
Heidi M. Waldrip ◽  
Lana Castleberry ◽  
...  

2000 ◽  
Vol 44 (5) ◽  
pp. 1359-1361 ◽  
Author(s):  
Axel Cloeckaert ◽  
Karim Sidi Boumedine ◽  
Geraldine Flaujac ◽  
Hein Imberechts ◽  
Inge D'Hooghe ◽  
...  

ABSTRACT Recently a chromosomal locus possibly specific for Salmonella enterica serovar Typhimurium DT104 has been reported that contains a multiple antibiotic resistance gene cluster. Evidence is provided that Salmonella enterica serovar Agona strains isolated from poultry harbor a similar gene cluster including the newly described floR gene, conferring cross-resistance to chloramphenicol and florfenicol.


2006 ◽  
Vol 50 (11) ◽  
pp. 3944-3946 ◽  
Author(s):  
Axel Cloeckaert ◽  
Karine Praud ◽  
Benoît Doublet ◽  
Marie Demartin ◽  
François-Xavier Weill

ABSTRACT We report a new Salmonella genomic island 1 variant antibiotic resistance gene cluster called SGI1-L in a Salmonella enterica serovar Newport isolate containing a dfrA15 gene cassette conferring resistance to trimethoprim. The isolate carried another class 1 integron containing the aacC5 and aadA7 gene cassettes conferring resistance to gentamicin and streptomycin/spectinomycin, respectively.


2004 ◽  
Vol 48 (10) ◽  
pp. 3806-3812 ◽  
Author(s):  
Benoît Doublet ◽  
François-Xavier Weill ◽  
Laetitia Fabre ◽  
Elisabeth Chaslus-Dancla ◽  
Axel Cloeckaert

ABSTRACT Salmonella genomic island 1 (SGI1) harbors an antibiotic resistance gene cluster and was previously identified in the multidrug-resistant Salmonella enterica serovars Typhimurium DT104, Agona, Paratyphi B, and Albany. This antibiotic resistance gene cluster is a complex class 1 integron and most often confers resistance to ampicillin (Ap), chloramphenicol (Cm)/florfenicol (Ff), streptomycin (Sm)/spectinomycin (Sp), sulfonamides (Su), and tetracycline (Tc) (ApCmFfSmSpSuTc profile). Recently, variant SGI1 antibiotic resistance gene clusters conferring different antibiotic resistance profiles have been identified in several S. enterica serovars and were classified as SGI1-A to -G. We identified a new variant SGI1 antibiotic resistance gene cluster in two multidrug-resistant S. enterica serovar Newport strains isolated from humans in France. In these strains, the Sm/Sp resistance gene cassette aadA2 inserted at the first attI1 site was replaced by two other aminoglycoside resistance gene cassettes. The first one contains a new resistance gene encoding an AAC(3)-I aminoglycoside 3-N-acetyltransferase that confers resistance to gentamicin (Gm) and sisomicin (Sc). This gene has been named aac(3)-Id. The second one harbors the Sm/Sp resistance gene aadA7. This gene cassette replacement in the SGI1 complex integron of serovar Newport strains constitutes a new variant SGI1 antibiotic resistance gene cluster named SGI1-H. The occurrence of SGI1 in different S. enterica serovars, now including serovar Newport, strengthens the hypothesis of horizontal transfer of SGI1.


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