Profile of endoparasites in dairy cattle in the microregion of São João del-Rei, state of Minas Gerais, Brazil / [Perfil de endoparasitas em bovinos leiteiros na microrregião de São João del-Rei, Minas Gerais, Brasil]

The present study provides the first evaluation of the endoparasite profile in dairy cattle from the microregion of São João del-Rei, Minas Gerais, Brazil, including seasonal variations in parasitic infections. Fecal samples were collected directly from rectum of 123 dairy cows and 160 calves on 15 farms. These were kept in insulated boxes and sent for immediate analysis. Using eggs per gram of feces (EPG) we found the following prevalences: Strongyloidea 43.5%, Moniezia sp. 7.6% and both Strongyloides sp. and Trichuris spp. 2.2%, in dairy cows. In calves, the prevalence was Strongyloidea 50.9%, Moniezia sp. 5.6% and Strongyloides sp. 1.9%. The third-stage larvae recovered from coprocultures from cows and calves consisted mainly of Cooperia spp., Haemonchus spp. and Ostertagia spp. EPG counts were significantly higher in calves. Regarding seasonality, the EPG counts and prevalence of Moniezia sp. tended to be higher in the dry period, whereas those of Strongyloidea were higher in the rainy season. Evidence suggests that parasite control and prophylaxis were inadequately managed on the farms studied here. The present parasitological profile correlates with those found by other similar studies, indicating that the main problem is still the inadequate management of parasite control and prophylaxis by farmers.(AU)

O presente estudo representa a primeira avaliação do perfil de endoparasitos em bovinos leiteiros da microrregião de São João del-Rei, Minas Gerais, Brasil, e das variações sazonais das infecções parasitárias. Foram avaliadas amostras fecais de 123 vacas e 160 bezerros de 15 propriedades rurais, coletadas diretamente do reto, mantidas em caixas térmicas isoladas e analisadas imediatamente. A contagem de ovos por grama de fezes (OPG) revelou prevalências de 43,5% de Strongyloidea, 7,6% de Moniezia sp. e 2,2% de Strongyloides sp. e Trichuris spp. em vacas leiteiras. As prevalências de OPG em bezerros foram 50,9% de Strongyloidea, 5,6% de Moniezia sp. e 1,9% de Strongyloides sp. As larvas do terceiro estádio recuperadas de coproculturas de vacas e bezerros foram principalmente de Cooperia spp., Haemonchus spp. e Ostertagia spp. OPG dos parasitos foram significativamente maiores em bezerros. Em relação à sazonalidade, OPG e a prevalência de Moniezia sp. tenderam a ser maiores durante a estação seca, enquanto OPG de Strongyloidea foram maiores na estação chuvosa. Com base nos resultados, é possível concluir que o manejo antiparasitário nas propriedades estudadas não é realizado de maneira plenamente satisfatória. O presente perfil parasitológico se assemelha a outros encontrados em estudos semelhantes, indicando que o maior problema ainda é o manejo antiparasitário inadequado realizado nas propriedades de bovinos leiteiros.(AU)

Prevalência de nematódeos intestinais em equinos de tração na cidade de Pelotas/RS, Brasil / Prevalence of intestinal nematodes in traction horses in city of Pelotas/RS, Brazil / Prevalencia de nematodos intestinales en caballos de tracción en la ciudad de Pelotas/RS, Brasil

Os equinos são utilizados em diversas atividades de trabalho, esporte e lazer, que demandam um bom desempenho e higidez do animal. Um dos fatores que alteram esses aspectos é a presença de endoparasitos. A atividade econômica utilizando equinos para tração é uma prática comum na cidade de Pelotas/RS, visto que muitas famílias dependem do cavalo para seu sustento. O objetivo do trabalho foi avaliar a avaliar a prevalência de nematódeos intestinais em equinos de tração na cidade. Para o estudo, foram utilizados resultados de diagnósticos de amostras fecais, obtidos através do banco de dados do laboratório do Grupo de Estudos em Enfermidades Parasitárias (GEEP) da Faculdade de Veterinária -Universidade Federal de Pelotas (UFPel). Entre os meses de janeiro a dezembro de 2018, 82 amostras foram processadas através da técnica de Gordon e Whitlock e os resultados expressos em OPG. Do total de amostras analisadas, 90,2% (74/82) foram positivas para algum nematódeo, apresentando média de contagem de 739,2 OPG. Observou-se maior prevalência de infecções por parasitos da família Strongylidae (74,3%). Infecções por Parascaris spp. e Strongyloides sp. foram observadas com 13,4% e 2,43% de prevalência, respectivamente. Conclui-se que na população de equinos avaliada, a maioria dos animais estavam parasitados por algum espécime de nematódeo, sendo os da família Strongylidae os mais prevalentes.(AU)

Horses are used in various work activities, sports and leisure activities, which require good performance and animal health. One of the factors that alter these aspects is the presence of endoparasites. Economic activity using horses for traction is a common practice in the city of Pelotas/RS, as many families depend on the horse for their livelihood. The objective of this study was to evaluate the prevalence of intestinal nematodes in traction horses in the city. For the study, we used results of diagnostics of fecal samples, obtained from the laboratory database of the Parasitic Disease Study Group (GEEP) at the Veterinary School -Federal University of Pelotas (UFPel). Between the months of January to December 2018, 82 samples were processed by the Gordon and Whitlock technique and the results expressed in EPG. Of the total samples analyzed, 90.2% (74/82) were positive for some nematode, with a mean count of 739.2 OPG. There was a higher prevalence of infections by parasites of the family Strongylidae (74.3%).Infections with Parascaris spp. and Strongyloides sp. were observed with 13.4% and 2.43% prevalence, respectively. It is concluded that in the evaluated horse population, most of the animals were parasitized by some specimen of nematodes, with the Strongylidae family being the most prevalent.(AU)

Los caballos se utilizan en diversas actividades laborales, deportivas y de ocio, que requieren un buen rendimiento y salud animal. Uno de los factores que alteran estos aspectos es la presencia de endoparásitos. La actividad económica que usa caballos para la tracción es una práctica común en la ciudad de Pelotas/RS, ya que muchas familias dependen del caballo para su sustento. El objetivo de este estudio fue evaluar la prevalencia de nematodos intestinales en caballos de tracciónen la ciudad. Para el estudio, utilizamos los resultados del diagnóstico de muestras fecales, obtenidos de la base de datos de laboratorio del Grupo de Estudio de Enfermedades Parasitarias (GEEP) dela Facultad de Veterinaria -Universidad Federal de Pelotas (UFPel). De enero a diciembre de 2018, se procesaron 82 muestras mediante la técnica de Gordon y Whitlock y los resultados se expresaron en OPG. Del total de muestras analizadas, 90.2% (74/82) fueron positivas para algunos nematodos, con un recuento medio de 739.2 OPG. Hubo una mayor prevalencia de infecciones por parásitos de la familia Strongylidae (74,3%). Infecciones por Parascaris spp. y Strongyloides sp. se observaron con 13.4% y 2.43% de prevalencia, respectivamente. Se concluyó que en la población equina evaluada, la mayoría de los animales fueron parasitados por algún espécimen de nematodos, siendo los de la familia Strongylidae los más prevalentes.(AU)

Causes of Fatal Cyathostomiasis in Brown Booby (Sula leucogaster) from Brazil: Identification of Pathogen and Implications for Management.

Fatal infection by Cyathostoma (Cyathostoma) phenisci (Nematoda: Syngamidae), was identified in 2 of 52 brown boobies (Sula leucogaster) collected on beaches in the state of Rio de Janeiro, Brazil, and admitted to the veterinary clinic for rehabilitation. Both infected birds were in poor physical condition, with atrophied pectoral muscles, and died soon after starting treatment. The parasitological and pathological examination of the carcasses revealed the presence of C. (C.) phenisci in the trachea, resulting in tracheitis, as well as severe parasitic granulomatous bronchopneumonia caused by eggs deposited in the lungs. In our opinion, these serious pathological changes were the primary cause of chronic respiratory illness. This is the first description of fatal cyathostomiasis in a fish-eating avian host caused by infection by a member of the subgenus Cyathostoma (Cyathostoma). Therefore, it is reasonable to consider C. (C.) phenisci to be a real threat to a wide range of their definitive hosts, and cyathostomiasis should be considered in the differential diagnosis for fish-eating marine birds, even in cases without respiratory signs. This is also the first record of the genus Cyathostoma in Brazil.

Prevalência de nematódeos intestinais em equinos de tração na cidade de Pelotas/RS, Brasil / Prevalence of intestinal nematodes in traction horses in city of Pelotas/RS, Brazil / Prevalencia de nematodos intestinales en caballos de tracción en la ciudad de Pelotas/RS, Brasil

Os equinos são utilizados em diversas atividades de trabalho, esporte e lazer, que demandam um bom desempenho e higidez do animal. Um dos fatores que alteram esses aspectos é a presença de endoparasitos. A atividade econômica utilizando equinos para tração é uma prática comum na cidade de Pelotas/RS, visto que muitas famílias dependem do cavalo para seu sustento. O objetivo do trabalho foi avaliar a avaliar a prevalência de nematódeos intestinais em equinos de tração na cidade. Para o estudo, foram utilizados resultados de diagnósticos de amostras fecais, obtidos através do banco de dados do laboratório do Grupo de Estudos em Enfermidades Parasitárias (GEEP) da Faculdade de Veterinária -Universidade Federal de Pelotas (UFPel). Entre os meses de janeiro a dezembro de 2018, 82 amostras foram processadas através da técnica de Gordon e Whitlock e os resultados expressos em OPG. Do total de amostras analisadas, 90,2% (74/82) foram positivas para algum nematódeo, apresentando média de contagem de 739,2 OPG. Observou-se maior prevalência de infecções por parasitos da família Strongylidae (74,3%). Infecções por Parascaris spp. e Strongyloides sp. foram observadas com 13,4% e 2,43% de prevalência, respectivamente. Conclui-se que na população de equinos avaliada, a maioria dos animais estavam parasitados por algum espécime de nematódeo, sendo os da família Strongylidae os mais prevalentes.

Horses are used in various work activities, sports and leisure activities, which require good performance and animal health. One of the factors that alter these aspects is the presence of endoparasites. Economic activity using horses for traction is a common practice in the city of Pelotas/RS, as many families depend on the horse for their livelihood. The objective of this study was to evaluate the prevalence of intestinal nematodes in traction horses in the city. For the study, we used results of diagnostics of fecal samples, obtained from the laboratory database of the Parasitic Disease Study Group (GEEP) at the Veterinary School -Federal University of Pelotas (UFPel). Between the months of January to December 2018, 82 samples were processed by the Gordon and Whitlock technique and the results expressed in EPG. Of the total samples analyzed, 90.2% (74/82) were positive for some nematode, with a mean count of 739.2 OPG. There was a higher prevalence of infections by parasites of the family Strongylidae (74.3%).Infections with Parascaris spp. and Strongyloides sp. were observed with 13.4% and 2.43% prevalence, respectively. It is concluded that in the evaluated horse population, most of the animals were parasitized by some specimen of nematodes, with the Strongylidae family being the most prevalent.

Los caballos se utilizan en diversas actividades laborales, deportivas y de ocio, que requieren un buen rendimiento y salud animal. Uno de los factores que alteran estos aspectos es la presencia de endoparásitos. La actividad económica que usa caballos para la tracción es una práctica común en la ciudad de Pelotas/RS, ya que muchas familias dependen del caballo para su sustento. El objetivo de este estudio fue evaluar la prevalencia de nematodos intestinales en caballos de tracciónen la ciudad. Para el estudio, utilizamos los resultados del diagnóstico de muestras fecales, obtenidos de la base de datos de laboratorio del Grupo de Estudio de Enfermedades Parasitarias (GEEP) dela Facultad de Veterinaria -Universidad Federal de Pelotas (UFPel). De enero a diciembre de 2018, se procesaron 82 muestras mediante la técnica de Gordon y Whitlock y los resultados se expresaron en OPG. Del total de muestras analizadas, 90.2% (74/82) fueron positivas para algunos nematodos, con un recuento medio de 739.2 OPG. Hubo una mayor prevalencia de infecciones por parásitos de la familia Strongylidae (74,3%). Infecciones por Parascaris spp. y Strongyloides sp. se observaron con 13.4% y 2.43% de prevalencia, respectivamente. Se concluyó que en la población equina evaluada, la mayoría de los animales fueron parasitados por algún espécimen de nematodos, siendo los de la familia Strongylidae los más prevalentes.

Occurrence of gastrointestinal parasites in wild animals in State of Paraná, Brazil

ABSTRACT The objective of this study was to determine the prevalence and diversity of gastrointestinal parasites in fecal samples from wild birds and mammals from the State of Paraná. In total, 220 stool samples were sent to Parasitic Diseases Laboratory of the Federal University of Paraná during 13 months (Jan/2013-Jan/2014). A total of 52.7% (116/220) of the animals were positive for cysts, oocysts, eggs and/or trophozoites. In birds, the positivity rate was 37.9% (25/66) and mammals was 59.1% (91/154). Strongyloidea superfamily eggs were observed in 37.3% (82/220) of the samples, Eimeria spp. in 10% (22/220), and Trichuris spp. in 4.5% (10/220). The most frequent mammal species were llamas (Lama glama), and dromedaries (Camelus bactrianus) with infection rate of 70.1% (54/77) and 60.8% (14/23), respectively. In other hand, cockatiels (Nymphicus hollandicus) and ring necks (Psittacula krameri), were the most researched birds, with infection rate of 20% (40/50) and 100% (6/6), respectively. A high prevalence of gastrointestinal parasites was observed in most of wildlife animals. Further investigations should be conducted focusing on parasite control strategies and the conservation measurements for harmonizing the human-animal interaction on the long-term, reducing associated health risks.

Applicability of FLOTAC® technique in recovering equine strongyle larvae in the pasture: A comparison study.

The FLOTAC® technique represents a highly sensitive method for the isolation of oocysts, eggs, and larvae of parasites in faeces. This assay could be used for detecting free-living stages of nematodes in the pasture but no attempt has been assessed so far. Therefore, the performance of FLOTAC® technique for isolating infective larvae of nematodes in the environment was investigated and compared with the spontaneous sedimentation (SST) and centrifugal sedimentation (CST) techniques. The study was conducted in a horse farm located in northeastern Brazil, where the occurrence of strongyle larvae had been previously reported. Pasture samplings were collected monthly from January to May 2016 in a 376 m2 crop area harvested with the Guinea grass Panicum cultivar Massai. The recovery of third-stage larvae (L3) was performed using the FLOTAC®, SST and CST techniques. Values of Cohen's kappa coefficient, sensitivity, specificity, positive and negative predictive values, and accuracy of each technique were assessed. Although strongyle larvae were evenly detected, with the FLOTAC® technique yielded the highest number of positive samples (i.e., 41%, 41/100, p < .0001). The main parasites isolated belonged to the Cyathostominae and Strongylinae subfamilies. Based on these results, the FLOTAC® technique should be considered as practical and safe method for the isolation of nematode larvae in the pasture, thus opening a new potential use for this tool in the field.

Occurrence of gastrointestinal parasites in wild animals in State of Paraná, Brazil.

The objective of this study was to determine the prevalence and diversity of gastrointestinal parasites in fecal samples from wild birds and mammals from the State of Paraná. In total, 220 stool samples were sent to Parasitic Diseases Laboratory of the Federal University of Paraná during 13 months (Jan/2013-Jan/2014). A total of 52.7% (116/220) of the animals were positive for cysts, oocysts, eggs and/or trophozoites. In birds, the positivity rate was 37.9% (25/66) and mammals was 59.1% (91/154). Strongyloidea superfamily eggs were observed in 37.3% (82/220) of the samples, Eimeria spp. in 10% (22/220), and Trichuris spp. in 4.5% (10/220). The most frequent mammal species were llamas (Lama glama), and dromedaries (Camelus bactrianus) with infection rate of 70.1% (54/77) and 60.8% (14/23), respectively. In other hand, cockatiels (Nymphicus hollandicus) and ring necks (Psittacula krameri), were the most researched birds, with infection rate of 20% (40/50) and 100% (6/6), respectively. A high prevalence of gastrointestinal parasites was observed in most of wildlife animals. Further investigations should be conducted focusing on parasite control strategies and the conservation measurements for harmonizing the human-animal interaction on the long-term, reducing associated health risks.

Tziminema unachi n. gen., n. sp. (Nematoda: Strongylidae: Strongylinae) parasite of Baird's tapir Tapirus bairdii from Mexico.

A new genus and species of nematode, Tziminema unachi n. gen., n. sp. is described from the caecum and colon of Baird's tapir Tapirus bairdii (Gill, 1865), found dead in the Reserva de la Biósfera El Triunfo, Chiapas State, in the Neotropical realm of Mexico. Tziminema n. gen. differs from the other nine genera included in the Strongylinae by two main characteristics: having 7-9 posteriorly directed tooth-like structures at the anterior end of the buccal capsule, and the external surface of the buccal capsule being heavily striated. Phylogenetic analyses of the DNA sequences of the mitochondrial cytochrome c oxidase and nuclear DNA, including a partial sequence of the internal transcribed spacer 1, 5.8S and a partial sequence of the internal transcribed spacer 2 of the new taxon, confirmed its inclusion in Strongylinae and its rank as a new genus.

Gastrointestinal parasites of sheep, municipality of Lajes, Rio Grande do Norte, Brazil.

This study investigated the gastrointestinal parasitism by helminths and protozoa in sheep (Ovis aries) Santa Inês breed, municipality of Lajes, Rio Grande do Norte. Monthly, from April 2005 to August 2007, stool samples were collected from two tracer lambs in the first day of the experiment and performed a necropsy of these animals in 44th day. A total of 64 lambs were sampled, but only 62 lambs were slaughtered. The fecal samples were examined by sedimentation in water. The contents of the abomasum, small intestine and large intestine were examined for the recovery of helminths. The parasitological examination revealed eggs of the following groups of helminths: Strongyloidea, Strongyloides sp., Trichuris sp., and Moniezia sp. Also were found oocysts of Eimeria spp., cysts of Entamoeba ovis and Giardia duodenalis. The helminths identified from examining the contents were: Haemonchus contortus, Cooperia pectinata, Cooperia punctata, Trichostrongylus colubriformis, Moniezia expansa, Oesophagostomum sp. Skrjabinema ovis and Trichuris sp.

Gastrointestinal parasites of sheep, municipality of Lajes, Rio Grande do Norte, Brazil / Parasitos do trato gastrintestinal de ovinos, município de Lajes, Rio Grande do Norte, Brasil

This study investigated the gastrointestinal parasitism by helminths and protozoa in sheep (Ovis aries) Santa Inês breed, municipality of Lajes, Rio Grande do Norte. Monthly, from April 2005 to August 2007, stool samples were collected from two tracer lambs in the first day of the experiment and performed a necropsy of these animals in 44th day. A total of 64 lambs were sampled, but only 62 lambs were slaughtered. The fecal samples were examined by sedimentation in water. The contents of the abomasum, small intestine and large intestine were examined for the recovery of helminths. The parasitological examination revealed eggs of the following groups of helminths: Strongyloidea, Strongyloides sp., Trichuris sp., and Moniezia sp. Also were found oocysts of Eimeria spp., cysts of Entamoeba ovis and Giardia duodenalis. The helminths identified from examining the contents were: Haemonchus contortus, Cooperia pectinata, Cooperia punctata, Trichostrongylus colubriformis, Moniezia expansa, Oesophagostomum sp. Skrjabinema ovis and Trichuris sp.(AU)

O presente estudo investigou o parasitismo gastrintestinal por helmintos e protozoários em ovinos (Ovis aries) da raça Santa Inês, no município de Lajes, Rio Grande do Norte. Mensalmente, entre abril de 2005 e agosto de 2007, foram coletadas amostras fecais de dois cordeiros traçadores no primeiro dia do experimento e realizada a necropsia desses animais no 44º dia. O total de cordeiros amostrados foi 64, mas apenas 62 foram necropsiados. As amostras fecais foram examinadas pela técnica de sedimentação espontânea em água. Os conteúdos do abomaso, intestino delgado e intestino grosso dos cordeiros necropsiados foram examinados para a recuperação dos helmintos. Os exames parasitológicos evidenciaram ovos dos seguintes grupos de helmintos: Strongyloidea, Strongyloides sp. , Trichuris sp., e Moniezia sp. Também foram encontrados oocistos de Eimeria spp., cistos de Entamoeba ovis e de Giardia duodenalis. Os helmintos identificados a partir do exame dos conteúdos foram: Haemonchus contortus, Cooperia pectinata, Cooperia punctata, Trichostrongylus colubriformis, Moniezia expansa, Oesophagostomum sp. , Skrjabinema ovis . Trichuris sp.(AU)

Gastrointestinal parasites of sheep, municipality of Lajes, Rio Grande do Norte, Brazil / Parasitos do trato gastrintestinal de ovinos, município de Lajes, Rio Grande do Norte, Brasil

This study investigated the gastrointestinal parasitism by helminths and protozoa in sheep (Ovis aries) Santa Inês breed, municipality of Lajes, Rio Grande do Norte. Monthly, from April 2005 to August 2007, stool samples were collected from two tracer lambs in the first day of the experiment and performed a necropsy of these animals in 44th day. A total of 64 lambs were sampled, but only 62 lambs were slaughtered. The fecal samples were examined by sedimentation in water. The contents of the abomasum, small intestine and large intestine were examined for the recovery of helminths. The parasitological examination revealed eggs of the following groups of helminths: Strongyloidea, Strongyloides sp., Trichuris sp., and Moniezia sp. Also were found oocysts of Eimeria spp., cysts of Entamoeba ovis and Giardia duodenalis. The helminths identified from examining the contents were: Haemonchus contortus, Cooperia pectinata, Cooperia punctata, Trichostrongylus colubriformis, Moniezia expansa, Oesophagostomum sp. Skrjabinema ovis and Trichuris sp.

O presente estudo investigou o parasitismo gastrintestinal por helmintos e protozoários em ovinos (Ovis aries) da raça Santa Inês, no município de Lajes, Rio Grande do Norte. Mensalmente, entre abril de 2005 e agosto de 2007, foram coletadas amostras fecais de dois cordeiros traçadores no primeiro dia do experimento e realizada a necropsia desses animais no 44º dia. O total de cordeiros amostrados foi 64, mas apenas 62 foram necropsiados. As amostras fecais foram examinadas pela técnica de sedimentação espontânea em água. Os conteúdos do abomaso, intestino delgado e intestino grosso dos cordeiros necropsiados foram examinados para a recuperação dos helmintos. Os exames parasitológicos evidenciaram ovos dos seguintes grupos de helmintos: Strongyloidea, Strongyloides sp. , Trichuris sp., e Moniezia sp. Também foram encontrados oocistos de Eimeria spp., cistos de Entamoeba ovis e de Giardia duodenalis. Os helmintos identificados a partir do exame dos conteúdos foram: Haemonchus contortus, Cooperia pectinata, Cooperia punctata, Trichostrongylus colubriformis, Moniezia expansa, Oesophagostomum sp. , Skrjabinema ovis . Trichuris sp.

Helmintofauna do cólon dorsal de equídeos provenientes do estado de Pernambuco Brasil / Helminthic fauna of the dorsal colon of equids from the Pernambuco state Brazil

Foram identificados 1,521 nematóides recuperados das amostras correspondentes a 10 por cento do conteúdo do cólon dorsal de seis equídeos naturalmente infectados provenientes do Estado de Pernambuco. Destes, 1,505 foram espécimes adultos da subfamilia Cyathostominae que estiveram distribuídos em 19 espécies, cylicostephanus longibursatus, cylicostephanus goldi, cylicocyclus nassatus, cyathostomum tetracanthum, cylicocyclus insigne, cylicostephanus calicatus, coronocyclus labratus, posteriostmum imparidentatum, cyathostomum pateratum, cylicocyclus leptostomus, cylicocyclus radiatus, coronocyclus coronatus, cylicostephanus bidentatus,cylicocyclus ultrajectinus, cylicostephanus minutus, posteriostomum ratzii, cylicostephanus asymetricus, parapoteriostomum euproctus, cylicodontophorus bicoronatus em ordem decrescente de prevalencia. As espécies que apresentaram maior prevalencia foram C. longibursatus, C. goldi, C. nassatus, C. tetracanthum e C. insigne com 100 por cente. Cinco espécimes pertenceram a subfamilia strongylinae, estes estiveram distribuídos em duas espécies, triodontophorus tenuicollis e craterostomum acudicaudatum

Cyathostominae (Nematoda) parasites of Equus caballus in some Brazilian states.

Thirty six horses from nine Brazilian states (Goiás, Minas Gerais, Pará, Maranhão, Piauí, Paraíba, Pernambuco, Rio Grande do Norte, and Ceará) were examined for infections by small strongyles. The following species were identified: Cylicocyclus nassatus, C. insigne, C. brevicapsulatus, C. leptostomum, C. radiatus, C. ultrajectinus, C. ashworthi, Cylicostephanus goldi, C. calicatus, C. minutus, C. longibursatus, Petrovinema poculatum, Coronocyclus coronatus, C. labiatus, C. labratus, Cyathostomum catinatum, C. pateratum, C. alveatum, Parapoteriostomum euproctus, Cylicodontophorus bicoronatus, Poteriostomum ratzii, P. imparidentatum and Gyalocephalus capitatus. The most prevalent were C. longibursatus (100%), C. nassatus (97.22%) and C. catinatum (94.44%). They were also the most abundant species, comprising 31.84, 23.71 and 14.14%, respectively, of the Cyathostominae parasites found. Infections were found to include 2-17 species in a single horse, with variable associations.

Case report of and description of parasite in Mammomonogamus laryngeus (human syngamosis) infection.

About 100 cases of human infections with Mammomonogamus laryngeus (Syngamidae, Syngaminae) have been reported, with virtually all cases originating in the Caribbean Islands and Brazil. This report describes the fifth patient in North America infected with M. laryngeus and the first case documented to originate in Jamaica. The patient complained of a characteristic persistent nonproductive cough and a lump in her throat. M. laryngeus is a nematode in which the male and female are permanently joined in copula, producing a distinctive Y shape. Since there is scant clinical information about this parasite, this report includes a description of the adult worms and eggs, a summary of the epidemiology, and the clinical manifestations in humans. Illustrations are presented to facilitate future identification of this parasite and to expedite treatment.

Case report of a description of parasite in mommomonogamus laryngeus (human syngamosis) infection

About 100 cases of human infections with Mammomonogamus laryngeus (Syngamidae, Syngaminae) have been reported, with virtually all cases originating in the Caribbean Islands and Brazil. This report describes the fifth patient in north America infected with M. laryngeus and the first case documented to originate in Jamaica. The patient complained of a characteristic persistent nonproductive cough and a lump in her throat. M. laryngeus is a nematode in which the male and female are permanently joined in copula, producing a distinctive Y shape. Since there is scant clinical information about this parasite, this report includes a description of the adult worms and eggs, a summary of the epidemiology, and the clinical manifestations in humans. Illustrations are presented to facilitate furture identification of this parasite and to expedite treatment (AU)

Human syngamosis. Two cases of chronic cough caused by Mammomonogamus laryngeus.

Parasites of the genus Mammomonogamus may occasionally affect the human respiratory tract, causing human syngamosis. We describe two cases of chronic unproductive cough caused by Mammomonogamus laryngeus that occurred in the state of São Paulo, Brazil. Some aspects related to human parasitism, diagnostic approach, and treatment are discussed.

[Intestinal parasites of Agouti paca (Rodentia: Dasyproctidae) in Costa Rica]. / Parásitos intestinales del tepezcuinte, Agouti paca (Rodentia: Dasyproctidae) en Costa Rica.

In a sample of 23 breeding places of pacas (Agouti paca) in Costa Rica, the following parasites were found: Eimeria agoutii, Balantidium coli, Capillaria sp., Trichuris sp., Taenia sp., Strongyloides sp., and members of the superfamilies Strongyloidea and Ascaroidea.

Parásitos intestinales del tepezcuinte, Agouti paca (Rodentia: Dasyproctidae) en Costa Rica / Intestinal parasites of Agouti paca (Rodentia: Dasyproctidae) in Costa Rica

In a sample of 23 breeding places of pacas (Agouti paca) in Costa Rica, the following parasites were found: Eimeria agoutii; Balantidium coli, Capillaria sp., Trichuris sp., Taenia sp., Strongyloides sp., and members of the superfamilies Strongyloidea and Ascaroidea

[Critical test of the activity of tetramisole phosphate on gastrointestinal helminths of sheep]. / Teste crítco da atividade do fosfato de tetramisol contra os helmintos gastro-intestinais de ovinos.

The phosphate sale of tetramizol assayed in naturally infested sheep by subcutaneous infection at the dosis of 8,66 mg/kg revealed very high efficiency against strongylid gastro-intestinal nematodes; its efficiency was comparable that found by several authors for the hydrochloride and cyclamate salts of the same drug, also by subcutaneious injection, at the dosis of 10 mg/kg. In what concerns helminths belonging to the genera Strongyloides and Capillaria our results were not conclusive enough.