Antimicrobial Resistance Profile of Salmonella and Listeria monocytogenes Isolated from Products Marketed on the Border of Brazil with Argentina and Uruguay

Autor: Vanessa Mendonça Soares, Leonardo Ereno Tadielo, Juliano Gonçalves Pereira, Tassiana Ramires, Wladimir Padilha da Silva
Přispěvatelé: Universidade Estadual Paulista (Unesp), Universidade Federal do Pampa, Universidade Federal de Pelotas
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Scopus
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Popis: Made available in DSpace on 2021-06-25T10:14:41Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-11-01 We aimed to perform serotyping and the antimicrobial resistance profile of Salmonella spp. and Listeria monocytogenes strains isolated from raw meats imported illegally into Brazil along the borders of Argentina and Uruguay. Distinct isolates of Salmonella spp. (n ¼ 6) and L. monocytogenes (n ¼ 25) obtained from 270 of these food products of earlier work were serotyped and tested for antimicrobial resistance by agar disk diffusion method. For strains that were considered phenotypically resistant, antimicrobial resistance genes were investigated: strA, strB, floR, tetA, tetB, blaZ, blaTEM, ermB, ermC, and ereB to Salmonella sp. and blaZ and mecA to L. monocytogenes. All Salmonella isolates were identified as Salmonella Infantis; they were multidrug resistant and harbored the genes blaTEM (n ¼ 6), strA (n ¼ 1), strB (n ¼ 1), floR (n ¼ 1), ermB (n ¼ 1), tetA (n ¼ 3), and tetB (n ¼ 3). L. monocytogenes isolates belonged to serovars 1/2a (n ¼ 1), 1/2b (n ¼ 14), 1/2c (n ¼ 2), and 4b (n ¼ 8), showed resistance only to penicillin G (n ¼ 12), and did not show the blaZ and mecA genes. The results demonstrated that illegal foods that are commercialized in the Brazilian international border with Argentina and Uruguay may harbor foodborne pathogens, and some of them have multidrug resistance characteristics, such as Salmonella, emphasizing the need for greater control of international food transit in Brazil, especially in the region evaluated. Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP) Campus Botucatu, Rua Prof. Walter Mauricio Correa, SN Universidade Federal do Pampa Campus Uruguaiana, BR 472, Km 585 Universidade Federal de Pelotas Campus Capão do Leão, Avenida Eliseu Maciel, s/n Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP) Campus Botucatu, Rua Prof. Walter Mauricio Correa, SN
Databáze: OpenAIRE