Introduction. Anisakidosis is a zoonosis caused by accidental ingestion of anisakid larvae (L3). Objective. To characterize the protein pattern and antigenic profile of the L3 of Anisakis simplex s.l. (type I), A. physeteris s.l. (type II) and Contracaecum osculatum s.l. commercial fish isolated. Methods. An SDS-PAGE electrophoretic run of the somatic antigens was performed. Rabbits were immunized experimentally and evaluated by EITB. Results. The protein pattern of Anisakis type I showed 12 bands, 18 Anisakis type II and C. osculatum 13, with bands 10 and 35 kDa specific for Anisakis type II, 28 and 77 for C. osculatum, notpresent in Anisakis type I. Conclusion. Specific immunogenic bands were determined for Anisakis type I with the molecular weight proteins 11, 14, 25 and 40 kDa, for type II of 9, 10, 12, 35 and 41 kDa and C. osculatum 13, 15, 17...

This study aimed to morpho-anatomically redescribe Lamanema chavezi in the three parasitic stages (egg, third stage larvae and adult) using optical microscopy and scanning electron microscopy. Samples were collected from alpacas (Vicugna pacos) in the municipal slaughterhouse of Melgar province, Puno, Peru. Adult specimens were collected from the small intestine using the Travassos method; eggs were collected from stool samples in infected animals by the flotation technique; and some of the collected eggs were incubated for obtaining larvae by mechanical process. The main findings include the presence of foliated crown rudiment, six cephalic papillae, synlophe ridges features, presence of papillae on the bursal dorsal side in the lateral lobes, spicules alae characteristics, and eggs and L3 larvae features. The results allowed the phenotypic characterization and complement the knowledge ...

In June 2012, as a result of a marine phenomenon that resulted in the death of birds of several species of seabirds, endoparasites were studied in two pelicans (Pelecanus thagus) and two penguins (Spheniscus humboldti) found dead on the beach in the district of Chorrillos, Lima (Peru). The helminths were obtained from the digestive tract in both species using the Travassos protocols. The nematodes Contracaecum rudolphii and Syngamus trachea, the cestode Tetrabothrius sp, the trematode Galactosomum puffini and the acanthocephalan Corynosoma sp were identified in Pelecanus thagus. In Spheniscus humboldti, the trematode Cardiocephaloides physalis and the nematodes Contracaecum pelagicum and Cyathostoma phenisci were identified. Syngamus trachea, Galactosomum puffini, Corynosoma sp and Contracaecum pelagicum are considered new reports in Pelecanus thagus in Peru. In addition, Spheniscus humb...

El presente estudio tuvo como objetivo redescribir morfo-anatómicamente a Lamanema chavezi en sus tres estadios parasitarios (huevo, larva de tercer estadío, adulto) utilizando la técnica de microscopía óptica y microscopía electrónica de barrido. Se trabajó con alpacas (Vicugna pacos) sacrificadas en el Camal Municipal de la provincia de Melgar, Puno, Perú. Los estadios adultos fueron colectados del intestino delgado aplicando el método de Travassos; los huevos fueron colectados de heces de animales parasitados mediante la técnica de flotación; y parte de los huevos obtenidos fueron incubados para la obtención de larvas mediante proceso mecánico. Los principales hallazgos incluyen la presencia del rudimento de corona foliácea, seis papilas cefálicas, características de crestas del sinlophe, presencia de papilas en la cara dorsal de los lóbulos laterales de la bolsa cop...

In June 2012, as a result of a marine phenomenon that resulted in the death of birds of several species of seabirds, endoparasites were studied in two pelicans (Pelecanus thagus) and two penguins (Spheniscus humboldti) found dead on the beach in the district of Chorrillos, Lima (Peru). The helminths were obtained from the digestive tract in both species using the Travassos protocols. The nematodes Contracaecum rudolphii and Syngamus trachea, the cestode Tetrabothrius sp, the trematode Galactosomum puffini and the acanthocephalan Corynosoma sp were identified in Pelecanus thagus. In Spheniscus humboldti, the trematode Cardiocephaloides physalis and the nematodes Contracaecum pelagicum and Cyathostoma phenisci were identified. Syngamus trachea, Galactosomum puffini, Corynosoma sp and Contracaecum pelagicum are considered new reports in Pelecanus thagus in Peru. In addition, Spheniscus humb...

Pathological lesions caused by acanthocephalans in marine birds are still little known. In this sense, a study of the pathological lesions in the gray gull (Leucophaeus modestus) (Tschudi, 1843) caused by theacanthocephalan Profilicollis altmani (Perry, 1942) Van Cleave, 1947 is presented. Gross lesions weremainly thickening of the intestinal wall in the area of deep penetration by the worm, with white serosalnodules. Microscopically was observed penetration from the parasite's anterior end in the villi andsubmucosa, surrounded by severe caseous necrosis and an inflammatory reaction composed by a moderate number of eosinophils and some multinucleated giant cells, mononuclear cells and peripherally a dense fibrous and vascularized connective tissue. Furthermore, the area between the proboscis and the necrotic tissue presented a number of bacilli basophilic bacteria. Additionally, in adjac...

The aim of this study was to identify gastrointestinal parasites present in wild yellow-tailed woolly monkey (Lagothrix flavicauda) in the Corosha district, Amazonas department, Peru. Twenty fecal samples were collected immediately after defecation. Each sample was separated into two portions to be fixed in 10% formalin at 65 ºC and in polyvinyl alcohol (PVA). The samples were analyzed using the Direct, Ritchie, Sheather Sugar, Gomori trichrome staining and modified Ziehl-Neelsen staining methods. The gastrointestinal parasites found were four nematodes (Capillaria sp, Ancylostoma sp, Strongyloides cebus, Strongyloides sp), one cestode (Paratriotaenia oedipomidatis), one acantocephalus (Prosthenorchis elegans) and three protozoa (Entamoeba coli, Cryptosporidium sp, Coccidia sp. Coccidia sp is a new genus reported for Lagothrix flavicauda.

The aim of this study was to identify gastrointestinal parasites present in wild yellow-tailed woolly monkey (Lagothrix flavicauda) in the Corosha district, Amazonas department, Peru. Twenty fecal samples were collected immediately after defecation. Each sample was separated into two portions to be fixed in 10% formalin at 65 ºC and in polyvinyl alcohol (PVA). The samples were analyzed using the Direct, Ritchie, Sheather Sugar, Gomori trichrome staining and modified Ziehl-Neelsen staining methods. The gastrointestinal parasites found were four nematodes (Capillaria sp, Ancylostoma sp, Strongyloides cebus, Strongyloides sp), one cestode (Paratriotaenia oedipomidatis), one acantocephalus (Prosthenorchis elegans) and three protozoa (Entamoeba coli, Cryptosporidium sp, Coccidia sp. Coccidia sp is a new genus reported for Lagothrix flavicauda.