ABSTRACT
Stephanofilariasis is an ulcerative dermatitis caused by nematodes that affect cattle in several countries in the world. However, it has not been described in beef cattle in Brazil. The objective of this study is to describe three cases of stephanofilariasis, which occurred in beef cows in the municipality of Ipê, RS, Brazil. The disease was characterized by pruritic, ulcerated and crusty seasonal lesions present in the cranial region of the udder. The diagnosis was confirmed by analyses of secretions stained smears and by direct optical microscopic examination of the sediment and the treatment was effectively carried out with topical trichlorphon. This report indicates that stephanofilariasis should be included as a differential diagnosis for dermatopathies in beef cattle in Brazil.(AU)
A estefanofilariose é uma dermatite ulcerativa causada por nematódeos que acometem bovinos em vários países do mundo, no entanto não tem sido descrita em bovinos de corte no Brasil. O objetivo do trabalho é a descrição de três casos de estefanofilariose em vacas de corte ocorridos no município de Ipê, RS. A enfermidade foi caracterizada por lesões sazonais pruriginosas, ulceradas e crostosas, presentes na região cranial do úbere. O diagnóstico foi confirmado pela análise dos esfregaços corados das secreções e por exame direto do sedimento em microscopia óptica, e o tratamento foi realizado de maneira eficaz com triclorfon tópico. Este relato demonstra que a estefanofilariose deve ser incluída como diagnóstico diferencial nas dermatopatias em bovinos de corte no Brasil.(AU)
Subject(s)
Animals , Female , Cattle , Dermatitis/veterinary , Filariasis/veterinary , Lactation Disorders/veterinary , Nematode Infections/veterinaryABSTRACT
En 1994, 125 carcases of camel [100 from Isfahan and 25 from Yazd] in slaughter - houses were studied for parasitic infections. Seventy% of the camels were infected with hydatid cyst and half of the males [50%] had testicular filaria identified as Dipetalonema evansi. All the infected male camels except 3, demonstrated sheathed rnicrofilariae in their peripheral blood smears. Although some different helminths were identified in this survey, only hydatid cyst and Dipetalonema evansi, which were more prevalent, are discussed here. These animals are of unknown origin and are used for transportation between Pakistan, Afghanistan and Iran border areas
Subject(s)
Animals , Echinococcosis/veterinary , Filariasis/veterinary , Testicular Diseases/veterinary , Testis/parasitologyABSTRACT
Se hace el estudio preliminar de la influencia de las condiciones higiénicas en las filariasis causadas por Dirofilaria immitis y Dipetalonema reconditum. Se encuentra que de la muestra total de 234 perros, 200 tenían malas condiciones higiénicas, y el 8% de ellos estaban infectados con D. reconditum; del otro grupo de 34 perros, los cuales tenían buenas condiciones higiénicas, se encontró el 2,9% parasitados con D. immitis. No se presenta infección mixta. Se señala en la explicación de estos resultados la posible influencia de la campaña contra el mosquito Aedes aegypti, al igual que la presencia de pulgas en los perros con malas condiciones higiénicas
Subject(s)
Dogs , Animals , Dog Diseases/epidemiology , Filariasis/veterinary , HygieneABSTRACT
Seven of the 18 species of lowland forest terrestrial and semi-arboreal murids were found naturally infected with Breinlia booliati. Of these, two species, Rattus sabanus and R. cremoriventer, were found to be the most preferred hosts. None of the murids from the highland, field or human-inhabited areas was infected. This could have been due more to the greater scarcity of the vectors in these habitats than to the susceptibility of the hosts. The absence of this parasite in the squirrels examined may be attributed either to host specificity or to the normal activity cycles or vertical stratification of the vectors, separating them in space and/or time from the squirrels. The pattern of dispersion of the parasite is influenced by the wide distribution of suitable hosts, and the hypothesis that the parasite is of forest origin is discussed.