Epidemiología de Salmonella spp., Listeria monocytogenes y Campylobacter spp., en la cadena productiva avícola

Abstract

RESUMENSalmonella spp., Campylobacter spp. y Listeria monocytogenes son patógenos zoonóticos causantes de enfermedades transmitidas por alimentos asociadas al consumo de productos de origen animal contaminados. En este estudio se determinaron la prevalencia y los factores de riesgo asociados a la presencia de estos microorganismos en todos los eslabones de producción de pollos de engorde en dos empresas integradoras avícolas colombianas (EI-I y EI-II). En la EI-I, se aislaron Campylobacter spp., y Salmonella spp., del 10 % y el 4,4 % de las muestras, y el serotipo predominante de esta última fue S. Heildelberg. Se encontró Salmonella spp., en 6 % de las muestras de manos y materia fecal de los trabajadores, y S. Saphra fue el serotipo más común.En la EI-II, la prevalencia de Campylobacter spp., y Salmonella spp., en muestras de animales fue del 7 % y el 17 %, respectivamente. No se detectó L. monocytogenes. Este trabajo estableció la prevalencia de los patógenos zoonóticos a lo largo de la cadena productiva, evidenció la presencia de trabajadores/manipuladores portadores de los patógenos y determinó, que "la falta de reconocimiento médico de los empleados en el último año" constituye un posible factor de riesgo para la portación de Salmonella spp. Cómo citar: Realpe-Delgado ME, Muñoz-Delgado AB, Donado-Godoy P, Rey-Ramírez LM, Díaz-Guevara PL, Arévalo-Mayorga SA. Epidemiología de Salmonella spp., Listeria monocytogenes y Campylobacter spp., en la cadena productiva avícola. Iatreia. PALABRAS CLAVE 398 SUMMARYEpidemiology of Salmonella spp., Listeria monocytogenes and Campylobacter spp., in the poultry chain production system Salmonella spp., Campylobacter spp., and L. monocytogenes are zoonotic foodborne pathogens, associated with the consumption of contaminated foods of animal origin. In this study we determined the prevalence and risk factors associated with the presence of these microorganisms at all stages of the production system, in two Colombian poultry companies (EI-EI-I and II). In EI-I, Campylobacter spp., and Salmonella spp., were isolated from 10 % and 4.4 % of the specimens, and S. Heidelberg was the predominant serotype. Salmonella spp., was found in 6 % of hands and stool samples of workers. S. Saphra was the most prevalent serotype. In EI-II, the prevalence of Campylobacter spp., and Salmonella spp., from animal specimens was 7 % and 17 %, respectively. L. monocytogenes was not detected. This study established the prevalence of these zoonotic pathogens through the production chain and showed the presence of pathogen carriers among workers/food handlers. "Lack of medical examination of employees in the previous year" was found to be a possible risk factor for carriage of Salmonella spp.

Contamination of chickens by Salmonella spp., in Brazil: an important public health problem

“…Enteritidis is a facultative intracellular pathogen responsible for food poisoning in humans called salmonellosis and was the most prevalent serotype (28.7%) in this study. In addition, it has been evidenced that the contamination of chickens by this pathogen, especially in carcasses, is related to the broiler chickens environment that may be contaminated, allowing the dissemination of this bacteria soon after slaughter 25,26 . In addition, contamination of chickens by this bacterial genus can also occur through the manipulators contaminated hand or contact with feces and contaminated water.…”

Prevalence and risk factors of Campylobacter jejuni and Campylobacter coli in fresh chicken carcasses from retail sites in Bogotá, Colombia

“…Among the few studies conducted in Colombia, one developed by the National Institute of Health, known in Colombia as Instituto Nacional de Salud (INS) in 2012, found a prevalence of 10.9% for Campylobacter in 19 chicken carcass processing plants [ 29 ]. Another study conducted in 2016 found a prevalence of 10% [ 30 ]. In addition, the Colombian Integrated Surveillance Program for Antimicrobial Resistance (COIPARS) has identified Salmonella spp.…”