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The authors highlight the reliance on repeated natural infections by tickborne pathogens to maintain immunity in immunized herds. That incidence of clinical heartwater in cattle, caused by Cowdria ruminantium, is low while intensive acaricide use interrupts transmission of pathogens. Evidence is ...


Perry, Brian D.Chamboko, TafireyiMahan, S.M.Medley, G.F.Minjauw, B.O'Callaghan, C.J.Peter, T.F.[The economics of integrated tick and tick-borne disease control on commercial farms in Zimbabwe]The economics of integrated tick and tick-borne disease control on commercial farms in Zimbabwe

Heartwater is a disease of high mortality in domestic ruminants (cattle, sheep and goats) in sub-Saharan Africa and in the Caribbean. An intracellular rickettsia, Cowdria ruminantium, is the cause of the disease and is transmitted by ticks of the genus Amblyomma. Losses due to heartwater are high...


Peter, T.F.O'Callaghan, C.J.Medley, G.F.Mahan, S.M.Perry, Brian D.[Biological support for modeling the transmission dynamics of cowdriosis]Biological support for modeling the transmission dynamics of cowdriosis

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