ABSTRACT
El objetivo del trabajo fué detectar hospedadores humanos en la zona andino patagónica argentina, teniendo en cuenta las prácticas de pesca desportiva y la importancia de los salmónidos dentro de la zona. entre 1986 y 1995 se implementaron Campañas de Información en los laboratorios de Análisis Clínicos de la región andinopatogónica argentina, destinadas a lograr una detección más eficiente de la difilobotriasis, a través de análisis coproparasitológicos. Adicionalmente, se confeccionaron planillas destinadas a recoger información sobre las características de la infección, del tratamiento y del paciente. Durante este período se detectaron 13 nuevos casos humanos, por identificación directa del parásito o por la presencia de huevos en materia fecal. Las características de las infecciones responden a las descriptas para el género Diphyllobothrium. En la región, los salmónidos son los peces predilectos en la pesca deportiva. Estos peces, frecuentemente parasitados con larvas, constituyen la principal fuente de contagio para el hombre al ser consumidos insuficientemente cocidos o ahumados en frío
Subject(s)
Humans , Male , Female , Diphyllobothriasis/epidemiology , Salmonidae/parasitology , Diphyllobothrium/isolation & purification , Fisheries , Laboratories , Diphyllobothriasis/diagnosis , Health Promotion , Surveys and QuestionnairesABSTRACT
New records of human diphyllobothriasis in Chile (1981-1992), with a case of multiple diphyllobotrium latum infection
Subject(s)
Humans , Male , Female , Child, Preschool , Adolescent , Adult , Diphyllobothriasis/epidemiology , Diphyllobothrium/pathogenicity , Diphyllobothrium/classification , Parasite Egg Count/methods , Salmonidae/parasitology , Salmon/parasitology , Trout/parasitologyABSTRACT
First report of camallanus corderoi Torres, Teuber and Miranda, 1990 (Nematoda: Camallanidae) in cultured salmonids from Puyehue lake, Chile
Subject(s)
Animals , Fish Diseases/parasitology , Nematoda/pathogenicity , Salmonidae/parasitology , Salmon/growth & development , Chile , Ecosystem , Fishes/parasitology , Microscopy , Parasite Egg Count/methodsABSTRACT
Between 1986 and 1987 fishes distributed among the following species introduced in Chile, and from different sectors of the Valdivia river basin (39graus 30' - 40 graus00', 73 graus 30' - 71 graus 45'W), were examined: 348 Salmo trutta, 242 salmo gairdneri, 24 Cyprinus carpio and 52 Gambusia affinis holbrooki. The presence of Camallanus corderoi and Contracaecum sp. in S. gairdneri and of C. corderoi in S. trutta is recorded in Chile for the first time. Cyprinus carpio and G. a. holbrooki did not present infections by nematodes. The prevalence and mean intensity of the infections by nematodes presented significant differences among some sectors of the Valdivia river basin. In general, the prevalence and intensity of the infections by C. corderoi were greater than those by Contracaecum sp. The infections in S. gairdneri were higher than in S. trutta. The sex of the hosts had no influence on the prevalence and intensity of the infections by both nematodes. The length of the hosts did have an influence, except in the case of the infections by Contracaecum sp. in S, gairdneri. The infrapopulations of both nematode species showed over dispersion in most cases. The diet of the examined salmonids suggests that they would become infected principally throught the consuption of autochthonous fishes