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Las parasitosis intestinales de perros revisten riesgo de zoonosis, particularmente en áreas agrícolas, produciendo en humanos cuadros a nivel gastrointestinal, cutáneo, visceral, ocular o neurológico, pudiendo algunos ser letales. El objetivo del presente estudio fue analizar la frecuencia de parásitos gastrointestinales en los perros de la comuna de Cabrero, Región del Biobío, Chile, con mayor enfoque en aquéllos zoonóticos, y analizar las conductas de tenencia asociadas con su riesgo de transmisión a humanos. Se visitaron 93 viviendas, sus jefes de hogar fueron encuestados y las heces de sus perros fueron analizadas en busca de parásitos. Se evaluaron diferencias en las variables consultadas entre áreas rurales y urbanas con pruebas de Fisher y Mann-Whitney. Se evaluó la asociación entre conductas preventivas (vacunación, desparasitación, alimentación, atención veterinaria), y presencia de parásitos en heces utilizando regresiones logísticas. Se registró en promedio 1,28 perros por vivienda. Las conductas asociadas con tenencia responsable fueron menos frecuentes en áreas rurales que urbanas. En el 58,1% de las viviendas los perros recibieron desparasitación interna; las otras conductas preventivas fueron menos frecuentes. El 51,6% de las viviendas presentaron perros parasitados; seis taxa fueron identificadas: Isospora sp., Trichuris vulpis, Toxocara canis, Ancylostomatidae Gen. sp. y Taeniidae Gen. sp. La desparasitación interna de perros fue la única conducta asociada con la presencia de parásitos. Sólo Isospora sp. no reviste riesgo de zoonosis. Existe riesgo de infección por helmintos zoonóticos del perro en los habitantes de Cabrero. Canine gastrointestinal parasites pose a zoonotic infection risk, particularly in rural areas, causing infections in the gastrointestinal track, skin, viscera, eyes or nervous system, and even causing death in some cases. The aim of this study was to analyze the frequency of gastrointestinal parasites, focusing on zoonotic parasites, in dogs of the county of Cabrero (Biobío Region, Chile), and the responsible pet owner behaviors associated with zoonotic transmission to humans. A total of 93 houses were surveyed and feces of dogs were examined for protozoa and helminths. Fisher tests and Mann-Whitney tests were used to determine differences between rural and urban areas of the variables under study. The relationship between preventive management practices (vaccination, deworming, feeding and medical checkup) and absence of parasites in feces was analyzed using logistic regressions. There was a mean of 1.28 dogs per house. Responsible pet ownership behaviors were less frequent in rural than in urban areas. Deworming was conducted in 58.1% of houses, while the other preventive management practices were less frequent. Dogs of 51.6% of the houses were parasitized with taxa: Isospora sp., Trichuris vulpis, Toxocara canis, Ancylostomatidae Gen. sp and Taeniidae Gen. sp. Deworming was the only practice associated with the presence of parasites. Only Isospora sp. is not a zoonotic parasite. There is a risk of zoonotic helminth infection from dogs to inhabitants of Cabrero.

Background: The Coquimbo Region in Chile has the highest incidence of hydatidosis in central and northern Chile. Aim: To analyze the incidence of human cystic echinococcosis (CE) in the Coquimbo Region between 2008 and 2012. Material and Methods: Official records of reported cases were analyzed. The association of the location, age and sex with the presence/absence of CE was analyzed by means of logistic regressions. The incidence was reported as cases per 100,000 inhabitants. Results: The mean annual incidence was 2.6 cases per 100,000 inhabitants, which ranged from 3.1 (2010) to 1.9 (2012) cases. The districts with higher incidence were Punitaqui (21.2 cases), Paihuano (9 cases), Rio Hurtado (8 cases), Canela (8.1 cases), Monte Patria (7.9 cases), Vicuña (6.9 cases) and Combarbalá (6.9 cases). The incidence in these locations was significantly higher than elsewhere in the region. Males had a significantly higher incidence than females (3.3 and 1.8 respectively). Incidence increased significantly with age, notably increasing after 45 years of age. Conclusions: Rural locations had the highest incidences of CE in the Coquimbo Region. The disease was reported more commonly in adults and mainly in men.

Introducción: La comuna de El Carmen, Región del Biobío, presenta factores de riesgo para la hidatidosis y la triquinosis, como un alto índice de pobreza, actividad principalmente agropecuaria y carencia de plantas faenadoras de animales. Método: Se analizó, a través de una encuesta a los usuarios y acompañantes del hospital de El Carmen, el conocimiento y las prácticas relacionadas con esas enfermedades. Resultados: La mayoría de los encuestados reconoció conductas de riesgo. La asistencia previa a charlas y el trabajo en actividades agropecuarias se asoció a mayor conocimiento de la hidatidosis y triquinosis, respectivamente. No hubo asociación entre edad, género o nivel educacional con el conocimiento de las enfermedades. Tampoco hubo asociación entre el conocimiento y las prácticas. Conclusiones: Los resultados sugieren la necesidad de mejoras educacionales, así como también intervenciones públicas, especialmente en sectores más lejanos. We surveyed users of the Hospital Comunitario de Salud Familiar El Carmen and their companions to analyze knowledge and practices regarding cystic echinococcosis and trichinellosis. Most people recognized risky practices. Previous attendance at talks and working in agricultural-livestock enhanced the knowledge. Age, sex and formal education were not associated with the knowledge. Knowledge was not associated with practices.

Background: Bacterial resistance to one or more antimicrobiak is worrisome. Aim: To determine the susceptibility to antimicrobials of Salmonella entérica isolates from animáis and food, from the Laboratory ofVeterinary Microbiology at the University of Concepción. Material andMethods: The samples were isolated according to traditional microbiological methods standardized protocols. Resistance was determined by the Kirby-Bauer method and minimal inhibitory concentration (MIC), following Clinical and Laboratory Standards Institute recommendations (2008). Results: Nine serotypes were identified among the 68 isolates. Strains were resistant to one or more antibiotics and 11 patterns of resistance were identified. Multidrug resistance (MDR) was observ.ed in20.5% ofthestrains tested. The mostcommon was Oxytetracycline resistance (69.1%). Infood, the predominant serotype was S. Derby (2.9%) and S. Senftenberg (2.9%), which is commonly found infood intended for animal consumption. In samples of animal origin, the predominant serotypes were S. infantis (33.8%) and S. Group E (3.9;-;-) (23.5%). Conclusions: The frequeney of resistance found and the impending risk that these strains could reach humans through the food chain, should prompt afollow-up study ofthispathogen.