Intestinal helminths in wild Peruvian red uakari monkeys (Cacajao calvus ucayalii) in the northeastern Peruvian Amazon.

Parasites are important in the management of the health of primate populations. We examined 36 fecal samples from Peruvian red uakari monkeys (Cacajao calvus ucayalii) collected from wild animals in the northeastern Peruvian Amazon. Samples were positive for helminth infection. Nematodes egg: Strongyloididae, Trypanoxyuris sp., Spirurid, and a cestode egg were identified.

Evidence of tungiasis in pre-Hispanic America.

Ancient parasites of the genus Tunga originated in America and, during the first half of the 19th century, were transported to the Eastern Hemisphere on transatlantic voyages. Although they were first documented by Spanish chroniclers after the arrival of Columbus, little is known about their presence in pre-Hispanic America. To evaluate the antiquity of tungiasis in America, we assessed several kinds of early documentation, including written evidence and pre-Incan earthenware reproductions. We identified 17 written documents and 4 anthropomorphic figures, of which 3 originated from the Chimu culture and 1 from the Maranga culture. Tungiasis has been endemic to Peru for at least 14 centuries. We also identified a pottery fragment during this study. This fragment is the fourth representation of tungiasis in pre-Hispanic America identified and provides explicit evidence of disease endemicity in ancient Peru.

Histopathological features of tungiasis in Peru.

Tungiasis is an ectoparasitic skin disease caused by Tunga penetrans and Tunga trimamillata. There is a lack of histopathological studies that evaluate the recognition of this flea in tissues. We describe the ex vivo dermoscopic and the histopathological patterns of six cases and relate the findings to the developmental stage of the parasite as defined by the Fortaleza classification: two were classified as Fortaleza 3b, 3 as 4a, and 1 as 4b. Two dermoscopic patterns were observed: a brown pigmented ring and a radial crown with a central pore. The most common histopathological findings were an eosinophilic cuticle, eggs in different stages of development, tracheal rings (parasite), and basal hyperplasia (host). The eosinophilic cuticle, eggs in different stages of evolution, and tracheal rings can help to establish the diagnosis when other parts of the parasite are lacking. The Fortaleza staging may represent a tool for pathology reporting purposes.

Cervical tumor caused by the sexually mature stage of Fasciola hepatica.

A 58-year-old man presented with an asymptomatic 5cm left anterior cervical tumor that had been present for over a year. Histological analysis revealed chronic inflammation and granuloma with giant cells surrounding Fasciola hepatica eggs. Fas2 antigen was detected in the tissue by immunohistochemistry. Serology for F. hepatica was positive, but stool examinations were negative and eosinophil count was normal. A month later, the tumor recurred, and an adult parasite was found during excision. The patient received triclabendazole, and after 6 months serology was negative. Erratic localization of F. hepatica reveals a pathology involving chronic inflammation caused by a sexually mature parasite, although according to theory only immature parasites are located in ectopic lesions.

Primer reporte de Neospora caninum, en caballos de carrera de Lima, Perú / First report of Neospora caninum, in race horse from Lima, Peru

Determinar la exposición de los caballos de carrera al N. caninum, mediante la detección de anticuerpos séricos. Material y Método: Se evaluaron 163 sueros de caballos procedentes del Hipódromo de Monterrico, Lima, los cuales fueron procesados mediante el método de Inmunoflorescencia Indirecta, considerándose positivos aquellos animales cuyos sueros obtuvieron un título igual o mayor a 1:100. Se realizó la titulación del suero mediante diluciones seriadas hasta alcanzar una dilución negativa. Resultados: Se detectaron anticuerpos a N. caninum en el 12 % (19/163) de los caballos examinados, 21% presentaron títulos de 1/100, 1/800 y 1/1600, el 6% presentaron títulos de 1/200 y 1/400 y el 5% presentaron títulos de 1/3200. No se encontró asociación entre las variables sexo, edad y procedencia con la presencia de seroreactores frente a N. caninum. Conclusión: El presente estudio es el primero en confirmar la presencia de anticuerpos séricos a N. caninum en caballos de carrera de Perú...

Determine the exposure of N. caninum in racehorses with the detection of serum antibodies. Material and methods: We evaluated sera from 163 horses from the Hippodrome of Monterrico, Lima, which were processed using the indirect immunofluorescence method, considering positive animals whose sera obtained a degree equal to or greater than 1:100. Was performed by titrating the serum dilutions to reach a negative dilution. Results: Antibody to N. caninum in 12% (19/163) of the horses examined, 21% had titers of 1/100, 1/800 and 1/1600, 6% had titers of 1/200 and 1/400 and 5% had titers 1/3200. No association between sex, age and origin with the presentation seroreactors against N. caninum. Conclusions: The present study is the first to confirm the presence of serum antibodies to N. caninum in race horses from Peru...

[Hyperendemicity of human fasciolosis in the Mantaro Valley, Peru: factors for infection with Fasciole hepatica]. / Hiperendemicidad de fasciolosis humana en el Valle de Mantaro, Perú: factores de riesgo de la infección por Fasciola hepática.

A sample of 206 children (between 1 and 16 years-old) in Huertas (n = 110) and Julcán (n = 96) districts of the Mantaro Valley, Peru, were studied with a clinico-epidemiological interview, serology and fecal parasitologic tests to describe the prevalence and analyze risk factors of infection by Fasciola hepatica (Fh). Fh prevalence by fecal examinations in Huertas (H) was 28.3% and Julcán (J), 12.6%. Using serological tests, the prevalences were: for H, 36.3% and for J, 22.7%. Univariate analysis showed a significant association between Fh infection and 3 variables in H: living near small streams (OR= 4.8; P < 0.05) or farms (OR= 2.88; P < 0.05) and the habit of drinking hot herbal drinks "emolientes" (OR= 2.92; P < 0.05); and in other 3 variables in J: having a single room per house (OR= 21.0; P < 0.05), defecating in the fields (OR= 4.77; P < 0.05), history of taking antiparasitic medication in the last six months (OR= 4.61; P < 0.05). Multivariate analysis, applied to the whole set of data revealed as possible risk factors for infection with Fh: the habit of drinking "emolientes" (OR= 5.16; P < 0.05) and living near small streams (OR= 17.22; P < 0.05) or in farms (OR= 8.13; P < 0.05). According to these results one of the most important and less recognized risk factors is the habit of drinking "emolientes". Due to the clinical importance of human fascioliasis, we conclude that its presence in the Mantaro Valley is an important public health problem, effective early diagnosis would allow rapid treatment and avoidance of the serious impairment brought by chronic infection.

Algunos helmintos de la marsopa espinosa, phocoena spinipinnis de la reserva nacional de Paracas, Perú / Some helminths of the porpoise, phocoena spinipinnis, of Paracas national reserve, Perú

Se informa de la presencia de 3 helmintos que parasitan a phocoene spinipinnis de la Reserva Nacional de Paracas, Ica, Perú: synthesium tursionis, pseudalius inflexus y stenurus australis. Por primera vez se encuentra en la costa S. tursionis parasitando a P. spinipinnis en la costa peruana

Una nueva especie y un nuevo registro de monogéneos parásitos en peces marinos del Perú / A new specie and a new record of monogenea parasites on peruavian marine fishes

Se describe una nueva especie de microcotylinae, neobivagina chita, de las branquias de anisotremus scapularis (Tschudi) chita (pomadasyidae) de la costa peruana. Neobivagina chita sp. n. se caracteriza por el número de testículos (51-72), presencia de receptáculo seminal y por el arreglo y número de las espinas atriales. Se registra por primera vez para el Perú a rhinobatonchocotyle cyclovaginatus Doran, 1953 (hexabothriidae) y se señala a rhinobatos planiceps Garman, guitarra como un nuevo huésped

Diphyllobothrium pacificum Nybelin 1931, Margolis 1956 en canis familiaris de la ciudad de Chincha Perú / Diphyllobothrium pacificum Nybelin 1931, Margolis 1956 in canis familiaris from Chincha city Perú

In this communication is presented the finding of the tapeworm Diphyllobothrium pacificum, parasite of sea lions, in Canis familiaris (dog) in Chincha city, Perú. This is the first canine infection with D. pacificum in the South Peruvian coast

Nota sobre algunos helmintos para el Perú / Note about some helmintes for Peru

Se da conocer por primera vez en el Perú, la presencia de algunos helmintos. Cestoda: Ophiotaenia calmetti (Barros, 1858) La Rue, 1911. Trematoda: Athesmia heterolecithoides (Braun, 1899) Looss, 1899; Nematoda: Molineus nasuae Lent & Freitas, 1938; Uncinaria stenocephala (Railliet, 1884) Railliet, 1885; Uncinaria sp. y Hastospiculum onchocercum Chiwood, 1932

Nota sobre la presencia de Synthesium tursionis (Marchi, 1873) Price, 1932 (Trematoda: campulidae) en Delphinus delphis L. (Cetacea:odontoceti) de la costa peruana / Note on the presence of Synthesium tursionis (Marchi, 1873) Price 1932 (Trematoda: campulidae) in Delphinus delphis L. (Cetacea: odontoceti) from the peruvian coast

Se da a conocer la presencia de Synthesium tursionis (Marchi, 1873) Price, 1932 parasitando a Delphinus delphis L de la costa peruana. Este es el primer hallazgo de esta especie en el Perú (nueva distribución) y D. delphis es un nuevo huésped

Aporocotyle garciai n. sp. (Digenea: sanguinicolidae), parásito de genypterus sp. de la costa peruana / Aporocotyle garciai n. sp.(Digenea: sanguinicolidae), parasite of genypterus sp. from the peruvian coast

Se describe el trematode Aporocotyle garciai n. sp. parásito de las arterias branquiales del pez Genypterus sp. (Ophidiidae) de la costa peruana. La nueva especie se diferencia de otras con ciego intestinal posterior corto, por el mayor número de testículos y por la ausencia de reborde muscular a nivel del poro genital

Ascariasis en primates no humanos del Perú / Ascariasis in non human primates of Peru

Se señala el segundo caso en el Perú de infección por Ascaris lumbricoides en un primate no humano, Pithecia monachus "guapo negro"

Patogenicidad de las larvas de anisakis physeteris inoculadas experimentalmente en canis familiaris / Pathogenicity of anisakis physeteris larvae experimentally inoculated to canis familiaris

El propósito del presente estudio fue demostrar de manera experimental la patogenicidad de las larvas L3 de Anisakis physeteris en el tracto digestivo de Canis familiaris. Las larvas se colectaron de Scomber japonicus "caballa", capturados en las costas de Pisco, Perú. Macroscópicamente, después de las 36, 42 y 60 horas de la infección se aprecia la mucosa gástrica con engrosamiento de las plicas, edema e hiperemia. Histológicamente se observa severa reacción inflamatoria gástrica mayormente conformada por neutrófilos y eosinófilos asociados a linfocitos, así como monocitos y plasmocitos. La lesión se encuentra rodeada por gran cantidad de tejido conectivo crónico. Estas características patológicas son similares a las descritas en la anisakiosis gástrica humana. Consideramos que A. physeteris es un potencial agente patógeno para el hombre y otros animales que se alimentan con pescado en el Perú

Cestodos parásitos de murciélagos de Ica, Perú / Cestodes parasites of bats from Ica, Perú

Se estudiaron a 75 murciélagos pertenecientes a 5 especies provenientes de la Provincia de Ica, costa sur del Perú, con la finalidad de conocer si estaban parasitados con céstodes. Se hace una descripción de Vampirolepis artibei Zdzitowiecki and Rutkowska, 1980 asignándole nuevos huéspedes. Se anota la presenica de Vampirolepis sp. colectada por Artibeus fraterculus (Anthoni). Se registra por primera vez en el Perú a V. artibei

Cynoscionicola american n, sp. y C. cynoscioni n. sp. (Monogenea: Hetraxinidae) parásitos de peces de la familia Scianidae de la Costa Peruana / Cynoscionicola americana n. sp and C. cynoscioni n. sp. (Monogenea: Heteraxinidae) parasites in fishes of the family Scianidae from Peruvian Cost

Se describen Cynoscionicola americana n. sp. y C.cynoscioni n. sp.. Ellas son diferentes de las otras especies conocidas por el número total de pinzas, presencia y estructura de pinzas grandes en el lado derecho del cotiloforo y estructura de sus atrios genitales

Contribución al conocimiento de la helmintofauna de peces marinos de la Costa Peruana / Contribution to the knowledge of helminths of marine fishes from Peruana Coast

Este trabajo, se estudian 9 especies de helmintos parásitos de peces marinos de la costa peruana. Ellos son: Trematoda, Dinurus longisinus y Bathycotyle corphaenae de Coryphaena hippurus; Cestoda, Rhodobthrium mesodesmatum de Myliobatis peruvianus, Thysanocephalum crispum y Platybothrium sp de Sphyrna zygaena, larvas de Tentacularia coryphaenae y de Nybelinia sp de C. hippurus; Nematoda, larvas de Contracaecum sp de C. hippurus, Acanthocephala: larvas de Corynosoma sp de C. hippurus. Algunos de estos parásitos son nuevos en la costa peruana. M. peruvianus es un nuevo hospedero para Rhodobothrium mesodesmatum