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A tick-borne disease characterized by fever, headache, myalgias, anorexia, and occasionally rash. Causal agents belong to the Rickettsiales order and include Erhlichia spp.; in humans, the disease is caused by Anaplasma phagocytophilum; in horses, it is caused by Neorickettsia risticii.
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RDF/XMLCreated 2006-01-19, last modified 2012-11-30