Antimicrobial sensitivity of Listeria monocytogenes isolated from beef

• Autor(a) principal: Almeida, Rodolfo Nunes de; Universidade Federal do Ceará
• Data de Publicação: 2018
• Outros Autores: Chesca, Ana Cláudia; Universidade de Uberaba (UNIUBE), Uberaba, Minas Gerais, Brasil., Silva, Aparecida Donizetti da; Universidade de Uberaba (UNIUBE), Uberaba, Minas Gerais, Brasil., Severino, Erika Cecília Vallim; Universidade de Uberaba (UNIUBE), Uberaba, Minas Gerais, Brasil., Martins, Otávio Augusto; Universidade Estadual Paulista (UNESP), Campus de Botucatu, São Paulo, Brasil., Raghiante, Fernanda; Instituto Federal de Educação, Ciência e Tecnologia do Triângulo Mineiro (IFTM), Campus Uberlândia, Minas Gerais, Brasil.
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Revista brasileira de higiene e sanidade animal
• DOI: 10.5935/rbhsa.v12i3.450
• Texto Completo: http://www.higieneanimal.ufc.br/seer/index.php/higieneanimal/article/view/450
• topic: Listeriosis, food safety, public health.

The objective of this study was to investigate the antimicrobial susceptibility of Listeria monocytogenes previously isolated from beef. The experiment used ground beef, commercialized in the city of Uberaba, Minas Gerais, Brazil. Using the Kirby-Bauer method, analyzes of antimicrobial susceptibility were carried out in the 14 isolates of Listeria monocytogenes. All strains (100%) showed sensitivity to antimicrobials: amoxicillin, ampicillin, gentamicin, penicillin, teicoplanin and vancomycin; Six strains (42.86%) presented sensitivity to sulfamethoxazole / trimethoprim and tetracycline; 3 strains (21.43%) presented sensitivity to erythromycin and 2 strains (14.29%) showed sensitivity to ciprofloxacin. While 8 strains (57.14%) presented intermediate resistance to ciprofloxacin and tetracycline. All strains isolated showed resistance to cefazolin, cefepime, cefotaxime, clindamycin, oxacillin and polymyxin b. The antimicrobial resistance of Listeria monocytogenes poses serious risks to public health, due to its seriousness in affecting vulnerable segments of the human population, due to the wide presence of this bacterium in the environment, being isolated from food processing environments, water effluents to industries and causing possible contamination of various foodstuffs.