Incidence and susceptibility to antimicrobial agents of Listeria spp. and Listeria monocytogenes isolated from poultry carcasses in Porto, Portugal

• Type: Article in International Scientific Journal
• Date: 2002

Authors

Antunes, P (Author) FCNAUP; Reu, C (Author) Other; Sousa, JC (Author) Other; Pestana, N (Author) Other; Peixe, L (Author) FFUP

Journal

Title: Journal of Food Protection

Vol. 65 No. 12

Pages: 1888-1893

ISSN: 0362-028X

Publisher: International Association for Food Protection

Indexing

ISI Web of Knowledge - 30 Citations

ISI Web of Science

Scopus - 35 Citations

Pubmed / Medline

Scientific classification

FOS: Agrarian Sciences > Other Agrarian Sciences

CORDIS: Health sciences

Other information

Authenticus ID: P-000-M85

Abstract (EN): The occurrence of Listeria spp. and Listeria monocytogenes in 63 samples of Portuguese poultry carcasses obtained from two local butcher shops and one canteen in the city of Porto, Portugal, and the susceptibility of these bacteria to antimicrobial agents allowed for use in human or animal therapeutics were evaluated. All poultry samples were contaminated with Listeria spp., and L. monocytogenes was isolated from 41% (26 of 63) of the samples. Other Listeria species, including L. innocua, L. welshimeri, and L. seeligeri, were also isolated from poultry samples. A multiplex polymerase chain reaction method was used for the identification of all of the Listeria isolates; this method showed total conformity with the conventional method of biochemical identification and proved to be more reliable, faster, and less arduous. In addition, high percentages of Listeria spp. (84%) and L. monocytogenes (73%) isolates were found to be resistant to one or more antimicrobial agents of different groups, and 12 different resistance profiles were recorded. The frequency of the resistance of L. monocytogenes isolates to enrofloxacin and clindamycin is notable. The results of this study suggest a high incidence of L. monocytogenes on Portuguese poultry products available for consumers and indicate that poultry could be a potential vehicle of foodborne infections due to strains of L. monocytogenes that are resistant to antimicrobial agents.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6