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Initial comparison of 2 polymorphic, immunodominant molecule (PIM) cDNA sequences from Theileria parva suggested that the PIM genes consist of conserved 5' and 3' termini flanking a central variable region. Further evidence is presented, based on sequence analysis, supporting this general structu...


Toye, Philip G.Gobright, E.I.Nyanjui, J.Nene, VishvanathBishop, Richard P.[Structure and sequence variation of the genes encoding the polymorphic, immunodominant molecule (PlM), a candidate diagnostic antigen of Theileria parva]Structure and sequence variation of the genes encoding the polymorphic, immunodominant molecule (PlM), a candidate diagnostic antigen of Theileria parva

Tick-borne diseases (TBDs) are a major economic constraint to livestock production in sub-Saharan Africa. ILRI is focussing on developing a range of products, such as vaccines, diagnostics and decision support services to underpin improved control programmes against these diseases. We have develo...


Morzaria, S.P.Katende, J.Musoke, A.J.Nene, VishvanathSkilton, Robert A.Bishop, Richard P.[Development of sero-diagnostic and molecular tools for the control of important tick-borne pathogens of cattle in Africa]Development of sero-diagnostic and molecular tools for the control of important tick-borne pathogens of cattle in Africa

Current serological tests for Babesia bigemina use semipurified merozoite antigens derived from infected erythrocytes. One of the major drawbacks of these tests is that antigen quality can vary from batch to batch. Since the quality of the antigen contributes to the sensitivity and specificity of...


Tebele, N.Skilton, Robert A.Katende, J.Wells, C.W.Nene, VishvanathMcElwain, T.F.Morzaria, S.P.Musoke, A.J.[Cloning, characterization and expression of a 200 Kilodalton diagnostic antigen of Babesia bigemina]Cloning, characterization and expression of a 200 Kilodalton diagnostic antigen of Babesia bigemina

T cell responses play an important role in immunity to parasites and other microbial agents of infectious diseases, therefore a number of T cell-directed vaccines are in development. Computer-driven algorithms that facilitate the discovery of T cell epitopes from protein and genome sequences are ...


Groot, A.S.Nene, VishvanathHegde, N.R.Srikumaran, S.Rayner , J.Martin, W.[T cell epitope identification for bovine vaccines: An epitope mapping method for BoLA A-11]T cell epitope identification for bovine vaccines: An epitope mapping method for BoLA A-11

Theileria are tick-transmitted, haemoprotozoan parasites infecting wild and domestic ungulates throughout many areas of the world. The most economically important species are T. parva and T. annulata which are pathogenic to cattle, and T. lestoquardi (syn hirci) which is pathogenic to sheep and g...


Skilton, Robert A.Musoke, A.J.Nene, VishvanathWasawo, D.P.S.Wells, C.W.Spooner, P.R.Bishop, Richard P.Osaso, J.Nkonge, C.Latif, A.Morzaria, S.P.[Molecular characterisation of a Theileria lestoquardi gene encoding a candidate sporozoite vaccine antigen]Molecular characterisation of a Theileria lestoquardi gene encoding a candidate sporozoite vaccine antigen

Theileria annulata and Theileria parva both poses a major surface antigen on the sporozoite stage of the life-cycle, called SPAG-1 and p67, respectively. In each case, these antigens are vaccine candidates and have been shown to induce a degree of homologous protection in earlier work. These anti...


Hall, R.Boulter, N.R.Brown, C.G.D.Wilkie, G.Kirvar, E.Nene, VishvanathMusoke, A.J.Glass, E.J.Morzaria, S.P.[Reciprocal cross-protection induced by sporozoite antigens SPAG-1 from Theileria annulata and p67 from Theileria parva]Reciprocal cross-protection induced by sporozoite antigens SPAG-1 from Theileria annulata and p67 from Theileria parva

Major histocompatibility complex (MHC) class I restricted cellular immune responses play an important role in immunity to intracellular pathogens. By binding antigenic peptides and presenting them to T cells, class I molecules impose significant selection on the targets of immune responses. Candi...


Russell, G.C.Oliver, R.A.Craigmile, S.Nene, VishvanathGlass, E.J.[Functional expression of a bovine major histocompatibility complex class I gene in transgenic mice]Functional expression of a bovine major histocompatibility complex class I gene in transgenic mice

Enhancement of the induction of cytotoxic T-cell responses by immunostimulatory CpG oligodeoxynucleotides has been described in humans and mouse models. The present study attempted to address whether CpG has a similar effect in cattle. Immunisation of cattle with a recombinant form of the polymor...


Graham, S.P.Saya, R.Awino, EliasNgugi, D.Nyanjui, J.K.Hecker, R.Taracha, E.L.N.Nene, Vishvanath[Immunostimulatory CpG oligodeoxynucleotides enhance the induction of bovine CD4+ cytotoxic T-lymphocyte responses against the polymorphic immunodominant molecule of the protozoan parasite Theileria parva]Immunostimulatory CpG oligodeoxynucleotides enhance the induction of bovine CD4+ cytotoxic T-lymphocyte responses against the polymorphic immunodominant molecule of the protozoan parasite Theileria parva

East Coast fever (ECF) in cattle is caused by the tick-borne protozoan parasite Theileria parva. The major sporozoite surface antigen of T. parva (p67) is an important candidate for inclusion in a subunit vaccine. Recently, we reported the expression and production of different parts of p67 as f...


Kaba, S.A.Schaap, D.Roode, E.C.Nene, VishvanathMusoke, A.J.Vlak, J.M.Oers, M.M. van[Improved immunogenicity of novel baculovirus-derived Theileria parva p67 subunit antigens]Improved immunogenicity of novel baculovirus-derived Theileria parva p67 subunit antigens

Theileria parva, a tick-transmitted protozoan parasite related to Plasmodium spp., causes the disease East Coast fever, an acute and usually fatal lymphoproliferative disorder of cattle in Africa. Previous studies using sera from cattle that have survived infection identified a polymorphic immuno...


Toye, Philip G.Metzelaar, M.J.Wijngaard, P.L.J.Nene, VishvanathIams, K.P.Roose, J.Nyanjui, J.K.Gobright, E.I.Musoke, A.J.Clevers, H.C.[Characterization of the gene encoding the polymorphic immunodominant molecule, a neutralizing antigen of Theileria parva]Characterization of the gene encoding the polymorphic immunodominant molecule, a neutralizing antigen of Theileria parva

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