A Review of Heartwater and the Threat of Introduction of Cowdria ruminantium and Amblyomma Spp. Ticks to the American Mainland

Heartwater, caused by the rickettsial agent Cowdria ruminantium, is one of the most devastating livestock diseases in sub-Saharan Africa. In addition to domestic cattle, sheep, and goats, a variety of nondomestic species can acquire subclinical and clinical infections. Recent epidemiologic findings...

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