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Previous Volume 333:452-453 August 17, 1995 Number 7 Next

	Since this article has no abstract, we have provided an extract of the first 100 words of the full text and any section headings.

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Ten tick-borne diseases are now recognized in the United States. Three of these have been discovered in the past three decades: Lyme disease in the 1970s, human ehrlichiosis (caused by Ehrlichia chaffeensis) in the 1980s, and a new human ehrlichial infection, human granulocytic ehrlichiosis, in the 1990s.¹

Tick-borne diseases have challenged researchers and physicians since studies in the early 1900s established the wood tick (Dermacentor andersoni) as a vector of Rocky Mountain spotted fever. This disease, although uncommon, was widely feared because of its case fatality rate of 70 percent. Deaths decreased dramatically after the introduction of . . . [Full Text of this Article]

References

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• Samuels, M. A., Newell, K. L. (1997). Case 32-1997- A 43-Year-Old Woman with Rapidly Changing Pulmonary Infiltrates and Markedly Increased Intracranial Pressure. NEJM 337: 1149-1156 [Full Text]