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Prevalence and antimicrobial resistance of Salmonella in chicken carcasses at retail in 15 Brazilian cities / Prevalencia y resistencia a los antimicrobianos de Salmonella en polloscongelados de venta al por menor en 15 ciudades del Brasil
Medeiros, Marcelo Augusto Nunes; Oliveira, Diana Carmem Nunes de; Rodrigues, Dália dos Prazeres; Freitas, Daniel Roberto Coradi de.
  • Medeiros, Marcelo Augusto Nunes; Agência Nacional de Vigilância Sanitária. BR
  • Oliveira, Diana Carmem Nunes de; Agência Nacional de Vigilância Sanitária. BR
  • Rodrigues, Dália dos Prazeres; Fundação Oswaldo Cruz. Laboratório de Referência Nacional de Cólera e Enteroinfecções Bacterianas. Rio de Janeiro. BR
  • Freitas, Daniel Roberto Coradi de; Universidade de Brasília. Núcleo de Medicina Tropical. BR
Rev. panam. salud pública ; 30(6): 555-560, Dec. 2011.
Article in English | LILACS | ID: lil-612949
RESUMEN
Objetivo. Describir la prevalencia y la resistencia a los antibióticos de Salmonella spp. en canales de pollo congeladas de venta al por menor en 15 ciudades del Brasil. Métodos. Entre septiembre del 2004 y julio del 2006 se llevó a cabo un estudio descriptivo de los datos del Programa Nacional Brasileño de Vigilancia de la Prevalenciade la Resistencia Bacteriana en el Pollo (PREBAF). Durante el programa serecolectaron canales de pollo en 15 capitales estatales del Brasil, en las cinco regiones geográficas del país. Para aislar Salmonella spp. e identificar los serotipos, se usaron las técnicas convencionales. Para evaluar la resistencia frente a 18 antibióticos, se usó el método de la concentración inhibitoria mínima. Resultados. En las 2 679 canales de pollo examinadas, la prevalencia de Salmonella spp. fue de 2,7% (amplitud, 0,0%–8,9%). El 50,6% de las muestras positivas provinieron del estado de São Paulo. Se identificaron 18 serotipos. Los más frecuentes fueron Salmonella Enteritidis (48,8%), Salmonella Infantis (7,6%), Salmonella Typhimurium (7,2%) y Salmonella Heidelberg (6,4%). Las 250 cepas evaluadas fueron resistentes auno o más antibióticos, y 133 (53,2%) fueron multirresistentes (≥ 3 clases de antibióticos). Salmonella Heidelberg fue resistente a la ceftriaxona (75,0%) y al ceftiofur (43,8%). Conclusiones. La prevalencia de Salmonella spp. en este estudio fue relativamente baja. Sin embargo, hubo una proporción elevada de cepas multirresistentes, inclusivea las cefalosporinas de tercera generación usadas para tratar la salmonelosis invasora. Los resultados confirman la relevancia del programa PREBAF, el cual se recomienda mejorar, por ejemplo, mediante un análisis oportuno de los datos. También es necesario revisar los límites permitidos de Salmonella spp. en el pollo que se vende al por menor en el Brasil.
ABSTRACT
Objective. To describe the prevalence and antimicrobial resistance of Salmonella spp. in frozen chicken carcasses at retail from 15 Brazilian cities. Methods. A descriptive study of data from the Brazilian National Program for Monitoring the Prevalence of Bacterial Resistance in Chicken (PREBAF) was conducted from September 2004 to July 2006. The program collected chicken carcasses in 15 state capitals of Brazil inthe five geographic regions of the country. Standardized methodologies were used to isolate Salmonella spp. and identify serotypes. The minimal inhibitory concentration method wasused to test resistance to 18 antimicrobials. Results. In 2 679 carcasses examined, the prevalence of Salmonella spp. was 2.7% (range0.0%–8.9%). São Paulo State produced 50.6% of positive samples. Eighteen serotypes were identified. The most frequently occurring were Salmonella Enteritidis (48.8%), Salmonella Infantis (7.6%), Salmonella Typhimurium (7.2%), and Salmonella Heidelberg (6.4%). All 250 strains tested were resistant to one or more antibiotics, and 133 (53.2%) were multidrug resistant (≥ 3 classes). S. Heidelberg was resistant to ceftriaxone (75.0%) and to ceftiofur (43.8%).Conclusions. The prevalence of Salmonella spp. found in this study was relatively low. However, there were a high proportion of multidrug-resistant strains, including thirdgenerationcephalosporins used to treat invasive salmonellosis. The results confirm the relevance of the PREBAF program. It is recommended that PREBAF be improved, including a timely data analysis. A review of permitted limits for Salmonella spp. in retail chicken in Brazil is also needed.
Subject(s)

Full text: Available Index: LILACS (Americas) Main subject: Salmonella / Drug Resistance, Microbial / Food Contamination / Chickens / Drug Resistance, Multiple, Bacterial / Food Microbiology / Frozen Foods / Meat / Anti-Bacterial Agents Type of study: Prevalence study / Risk factors / Screening study Limits: Animals Country/Region as subject: South America / Brazil Language: English Journal: Rev. panam. salud pública Journal subject: Public Health Year: 2011 Type: Article Affiliation country: Brazil Institution/Affiliation country: Agência Nacional de Vigilância Sanitária/BR / Fundação Oswaldo Cruz/BR / Universidade de Brasília/BR

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Full text: Available Index: LILACS (Americas) Main subject: Salmonella / Drug Resistance, Microbial / Food Contamination / Chickens / Drug Resistance, Multiple, Bacterial / Food Microbiology / Frozen Foods / Meat / Anti-Bacterial Agents Type of study: Prevalence study / Risk factors / Screening study Limits: Animals Country/Region as subject: South America / Brazil Language: English Journal: Rev. panam. salud pública Journal subject: Public Health Year: 2011 Type: Article Affiliation country: Brazil Institution/Affiliation country: Agência Nacional de Vigilância Sanitária/BR / Fundação Oswaldo Cruz/BR / Universidade de Brasília/BR