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There is growing evidence that immunity of cattle to Cowdria ruminantium infection is mediated by T lymphocytes. C. ruminantium antigens that stimulate these responses are therefore of considerable importance to the development of a sub-unit vaccine against the disease. We have examined T cell re...


Mwangi, D.M.McKeever, Declan J.Nyanjui, J.K.Barbet, A.F.Mahan, S.M.[Immunisation of cattle against heartwater by infection with Cowdria ruminantium elicits T lymphocytes that recognise major antigenic proteins 1 and 2 of the agent]Immunisation of cattle against heartwater by infection with Cowdria ruminantium elicits T lymphocytes that recognise major antigenic proteins 1 and 2 of the agent

Understanding the basis of protective immunity to Cowdria ruminantium will facilitate the development of an effective subunit vaccine against heartwater in ruminants and contribute to a better definition of protective immune mechanisms to obligate intracellular pathogens in general. Until recentl...


Totte, P.Bensaid, A.Mahan, S.M.Martínez, D.McKeever, Declan J.[Immune responses to Cowdria ruminantium infections]Immune responses to Cowdria ruminantium infections

The response of peripheral blood mononuclear cells (PBMC) collected from cattle immunized with killed C. ruminantium to MAP1, MAP1-B, MAP2 and to a lysate of Cowdria was characterized in vitro. CD4+ T lymphocytes responded strongly to Cowdria lysates while B cells and gamma delta T cells prolifer...


Totte, P.McKeever, Declan J.Jongejan, F.Barbet, A.Mahan, S.M.Mwangi, D.Bensaid, A.[Analysis of cellular responses to native and recombinant proteins of Cowdria ruminantium]Analysis of cellular responses to native and recombinant proteins of Cowdria ruminantium

Heartwater (cowdriosis) is an infectious disease of domestic ruminants in Africa and the Carribean and is caused by a tick-borne intracellular rickettsial agent, Cowdria ruminantium. There is growing evidence that immunity of cattle to the disease is medicated by T. lymphocytes. Antigens that sti...


Mwangi, D.M.McKeever, Declan J.Nyanjui, J.K.Barbet, A.F.Mahan, S.M.[Major antigenic proteins 1 and 2 of Cowdria ruminantium are targets for T-lymphocyte responses of immune cattle]Major antigenic proteins 1 and 2 of Cowdria ruminantium are targets for T-lymphocyte responses of immune cattle

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