ABSTRACT
Between may and july 1994, 17 adult returning salmons, oncorhynchus kisutch, were collected in the River Simpson, Chile. All fishes showed infection by plerocercoids of diphyllobothrium sp. in different locations: stomach, spleen, liver, mesenteries and gonads. Infection with larval cestodes of an unidentified species of phillobothriidae was determined in the intestine of seven (41,2 percent) salmons and its prevalences of infection showed significant differences between female and male salmons. The 94,4 percent of total plerocercoids of diphyllobothrium were isolated from the stomach wall. Prevalence and mean intensity of infection by diphyllobothrium sp. did not show significant differences between fishes of different sex
Subject(s)
Animals , Diphyllobothriasis/epidemiology , Diphyllobothrium/pathogenicity , Oncorhynchus kisutch/parasitology , Diphyllobothriasis/etiology , Diphyllobothrium/isolation & purification , Fresh Water/parasitology , Myiasis/epidemiology , Parasite Egg Count , Prevalence , Sparganum/isolation & purification , Sparganum/pathogenicitySubject(s)
Animals , Male , Female , Anura/parasitology , Helminthiasis, Animal/parasitology , Helminths/isolation & purification , Acanthocephala/isolation & purification , Chile , Helminthiasis, Animal/epidemiology , Nematoda/isolation & purification , Prevalence , Trematoda/isolation & purificationABSTRACT
A new species found in the intestine of Eupsophus calcaratus (Anura: Leptodactylidae) from Yaldad, Chile (45º5'S;73º43'W) is described. This nematode is compared with other South American species of the genus. Aplectana artigasi differs from the only known Chilean species, Aplectana chilensis, as the former has a greater number of postanal papillae and double papilla in the ventral region of the tail.
Subject(s)
Animals , Nematoda/ultrastructure , Anura/parasitologyABSTRACT
The chilean leptodactylid frog eupsophus calcaratus, a typical inhabitant of the temperate forest of South America, is registered as a new host of baerietta chilensis (cestoda: nematotaeniidae)
Subject(s)
Animals , Anura/parasitology , Cestoda/isolation & purification , Cestoda/classification , Host-Parasite InteractionsABSTRACT
In this paper a list of the endoparasites described for the chilean frogs and toads is presented. Also it is indicated the locality of the hosts, prevalence and intensity of the infection. Nine species of parasites have been described; three trematodes: Gorgoderina chilensis in Rhinoderma darwinii, Gorgoderina valdiviensis in Caudiverbera caudiverbera and Rudolphitrema chilensis in Eusophus roseus; two cestodes: Ophiotaenia noei in C. caudiverbera and Baerietta chilensis in Batrachyla taeniata; three nematodes: Aplectana chilensis and Cosmicerca chilensis in R. darwinii and Oswaldocruzia neghmei in Hylorina sylvatica, Eusophus miqueli, Eusophus vertebralis and E. roseus and one acanthocephala: Acanthocephalus caspanensis in Bufo spinulosus
Subject(s)
Animals , Anura/parasitology , Helminths/isolation & purification , Amphibians/parasitology , Trematoda/isolation & purificationABSTRACT
Se describe una nueva especie de lepocreadium, L. valdiviensis (Digenea) del intestino delgado del lenguado, Paralichthys microps Günther, 1881. difiere de las otras especies del género, principalmente por la distribución de los folículos vitelógenos, los cuales se extienden desde el extremo posterior del cuerpo hasta la ventosa ventral; la porción anterior del cuerpo cubierta con espinas; útero preovárico; ovario y testículos compactos. Este hallazgo extiende la distribución geográfica del género e identifica un nuevo huésped para este taxón
Subject(s)
Animals , Fishes/parasitology , Flounder/parasitology , Trematoda/isolation & purification , Flatfishes/parasitology , Intestine, Small/parasitology , Platyhelminths/isolation & purification , Host-Parasite Interactions/physiologySubject(s)
Eukaryota , Feces/analysis , Helminthiasis/diagnosis , Helminths , Protozoan Infections/diagnosis , ChileSubject(s)
Child, Preschool , Child , Humans , Male , Female , Intestinal Diseases, Parasitic/epidemiology , Age Factors , Feces/parasitologyABSTRACT
Se describe un nuevo tremátodo digenético perteneciente al género Rudolphitrema. La nueva especie es llamada Rudolphitrema chilensis sp. nov. y se ha encontrado en el intestino delgado del batracio chileno Eusophus roseus. Este nuevo tremátodo es comparado con las otras especies del género
Subject(s)
Animals , Anuria/parasitology , Intestine, Small/parasitology , Trematoda/growth & development , ChileSubject(s)
Child , Adolescent , Humans , Male , Female , Intestinal Diseases, Parasitic/epidemiology , Sanitation , ChileABSTRACT
En 14 escolares con edades entre 6,2 y 13,6 años, portadores asintomáticos de Giardia lamblia se hicieron evaluaciones antropométricas y mediciones de hematocrito, hemoglobinemia, proteinemia total, albuminemia, carotinemia basal y prueba de absorción de vitamina A y D-xilosa, antes y después de recibir tratamiento antiparasitario con Tinidazol y Mebendazol. Se demonstraron aumentos significativos en pliegue cutáneo tricipital, hematocrito, hemoglobinemia y proteinemia. La xilosemia fue de 38,8 + ou - 8,9 y de 57,5 + ou - 10,8 mg% (p <0,005) antes y después del tratamiento respectivamente. Las concentraciones de vitamina A después de sobrecarga oral fueron 66,5 + ou - 26,0 y 213,0 + ou - 113,0 microng% (p <0,005) y el delta vitamina A de 32,7 + ou - 25,3 y de 152,7 + ou - 115,8 microng% (p <0,005) para las etapas previa y posterior al tratamiento respectivamente. Se concluye que en escolares asintomáticos, portadores de Giardia lamblia, podría incrementar la absorción intestinal luego de erradicar al parásito