heartwater

noun
heart·wa·ter | \ˈhärt-ˌwȯt-ər, -ˌwät- \

Medical Definition of heartwater 

: a serious febrile disease of sheep, goats, and cattle in southern Africa that is caused by a bacterium of the genus Ehrlichia (E. ruminantium) transmitted by a bont tick (Amblyomma hebraeum)

called also heartwater disease, heartwater fever

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