Mapping heartwater (cowdriosis) in Tanzania using national tick survey and cattle seroprevalence data from 1998–2001
Heartwater (ehrlichiosis or cowdriosis) is a domestic and wild ruminant disease caused by a bacterium called Ehrlichia ruminantium. The pathogen is transmitted among susceptible hosts by ticks of the genus Ambylomma. The enzootic areas of the disease correspond to the distribution of vector ticks in southern, eastern,...