Asociación entre resistencia a antibióticos y serotipos en Salmonella de transmisión alimentaria

  1. Juez García, María
  2. Álvarez Sánchez, Julio
  3. Sotodosos Carpintero, Mercedes
  4. Ugarte-Ruiz, María
Journal:
Revista Madrileña de Salud Pública: REMASP

ISSN: 2659-9716

Year of publication: 2020

Volume: 4

Issue: 5

Pages: 1-8

Type: Article

DOI: 10.36300/REMASP.2020.065 DIALNET GOOGLE SCHOLAR

More publications in: Revista Madrileña de Salud Pública: REMASP

Abstract

Salmonellosis is one of the main foodborne zoonosis worldwide. It is caused by Salmonella enterica subesp. enterica, that can be classified in over 2.500 serotypes. Among the large variety of food products associated with its transmission, egg and egg products are among the most frequently reported sources of infection. Salmonellosis mainly leads to gastrointestinal signs, although it is usually self-limiting. However, in severe cases bacteremia may occur, making antibiotic treatment essential. For this reason, the increasing levels of resistance to antimicrobials in Salmonella strains are a significant threat to Public Health. Here, the level of resistance to nine antimicrobials in a collection of Salmonella isolates recovered from purchased eggs over an 11-year period (2007-2017) as part of a monitoring program was evaluated. During this time, 243 isolates belonging to 23 serotypes were recovered, of which Enteritidis, Infantis, Rissen, Anatum and Typhimurium accounted for over 80% of the whole strain collection. Enteritidis were the most frequent serotype (41%). The antimicrobial resistance levels were below 10% for all the antimicrobials, except ciprofloxacin, nalidixic acid, tetracycline and ampicillin, and varied depending on the serotype. Overall, 41% of the isolated strains were susceptible to the nine antimicrobials but almost 8% of the strains were considered multi-resistant (resistant to ³3 antimicrobial families). Although the resistance levels observed in this study were generally low there were several exceptions (such as resistance to quinolones or in S. Rissen isolates) that deserve further consideration. These results, in addition to the changes observed over time in terms of serotypes and resistance observed, highlight the importance of performing this type of surveillance programs and the importance of comparing data from food, animals and humans to assess the evolution of serotypes and resistance in Salmonella.

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Data source: Dialnet