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A review on the diagnosis infection in cattle of Schistosoma bovis: current status and future prospects Ciência Rural
Aradaib,Imadeldin Elamin; Ahdelmageed,Elabbas Mohamed; Hassan,Sanaa Ali; Riemann,Hans Peter.
Bovine schistosomiasis, caused by Schistosoma bovis, is a serious veterinary problem in many parts of the worid. The current methods used for the diagnosis of the disease include clinical signs, pathological lesions, parasitological and serological techniques. As clinical signs and parasitological lesions caused by S. bovis are indistinguishable from those induced by other trematode parasites, confirmation of diagnosis by these methods is unreliable. Parasitological techniques used to demonstrate eggs of the parasite in fecal or tissue samples represent the most accurate method for detection of an active S. bovis infection. The tissue of choice for detection of S. bovis infection is the liver because of the visible macroscopic lesion that can be seen in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Schistosoma bovis; Bovine schistosomiasis; Diagnosis; Cattle.
Ano: 1995 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781995000300029
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ELISA FOR BOVINE SCHISTOSOMIASIS VACCINE EVALUATION: A PRELIMINARY REPORT Ciência Rural
Aradaib,Imadeldin Elamin; Abbas,Babiker; Osburn,Bennie; Bushara,Hamid Omer; Taylor,Martin.
Six calves were immunized with schistosomula of Schistosoma bovis irradiated at 3 or 20 Kilorad (Krad) and three calves were kept as controls. Twenty four weeks post immunization, three calves (one from the 20 Krad and two from the 3 Krad group) were challenged with normal cercaria of S. bovis. The immune response was monitored by agar gel immunodiffusion (AGID) and the Enzyme Linked Immunosorbent Assay (ELISA) using adult worm antigen. Using AGID, precipitin lines were observed only with sera from challenged animals. Using ELISA, the immune response of the vaccinated calves was first detected by 2-3 weeks, peaking by 6-8 weeks post vaccination. The immune response of the three challenged calves was elevated by 2 weeks post challenge, peaking at 8-10 weeks...
Tipo: Info:eu-repo/semantics/article Palavras-chave: ELISA; Schistosoma bovis; Vaccine.
Ano: 1994 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781994000300020
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Experimental bovine schistosomiasis in zebu calves Ciência Rural
Aradaib,Imadeldin Elamin; Abbas,Babiker; Riemann,Hans Peter; Osburn,Bennie Irve.
Five calves were each experimentally infected with 30,000 cercariae of Schistosoma bovis and three calves were kept as controls. S. bovis eggs first appeared in feces of the infected animals by week 5 post infection and all animals were shedding by week 6 post infection. Between week 7 and 9 post infection, where fecal egg counts were highest, the infected animals developed mucoid and then hemorrhagic diarrhoea and they became dull and depressed. Packed cell volumes and hemoglobin concentrations of the infected animals showed progressive reductions compared to the uninfected control calves. The animals were necropsied and perfused at week 12 post infection and tissue egg densities and worm burden were determined.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Schistosoma bovis; Bovine schistosomiasis.
Ano: 1995 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781995000100019
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Population genetic structure of Schistosoma bovis in Cameroon ArchiMer
Djuikwo-teukeng, Felicite Flore; Simo, Alain Kouam; Allienne, Jean-francois; Rey, Olivier; Ngapagna, Arouna Njayou; Tchuem-tchuente, Louis Albert; Boissier, Jerome.
BackgroundSchistosomiasis is neglected tropical parasitic disease affecting both humans and animals. Due to the human health impact, population genetic studies have focused on the three main human-infecting schistosome species: Schistosoma mansoni, S. haematobium and S. japonicum. Here we present novel data on the population genetic structure of Schistosoma bovis, a highly widespread and prevalent schistosome infecting ruminants, and therefore of veterinary importance.MethodsAdult S. bovis were sampled in the two main abattoirs of Cameroon (Yaounde and Douala). Twenty-two cows originating from four distinct localities were sampled and a total of 218 parasites were recovered. All parasites were genotyped using a panel of 14 microsatellite markers and a...
Tipo: Text Palavras-chave: Schistosoma bovis; Barcoding; Population genetic structure.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00481/59267/62448.pdf
Registros recuperados: 4
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