Other conditions that might have Ehrlichiosis as a complication may, potentially, be an underlying cause of Ehrlichiosis. Our database lists the following as having Ehrlichiosis as a complication of that condition:
Causes: Ehrlichiosis:
A history of tick bite or exposure to tick-infested habitats is reported in
50% to 90% of cases. (Source: excerpt from Ehrlichiosis: Epidemiology: DVRD)
Article excerpts about the
causes of Ehrlichiosis:
Ehrlichiosis is caused
by several bacterial species in the genus Ehrlichia (pronounced
err-lick-ee-uh) which have been recognized since 1935. Over several
decades, veterinary pathogens that caused disease in dogs, cattle, sheep, goats, and
horses were identified. Currently, three species of Ehrlichia in the
United States and one in Japan are known to cause disease in humans; others could be recognized in the future as methods of detection
improve. (Source: excerpt from Ehrlichiosis: DVRD)
As with all medical conditions, there may be many causal factors. Further relevant information on causes of Ehrlichiosis may be found in:
16 MEDICAL BOOKS ONLINE! Review excerpts from medical books online, free, without registration, for more information about the causes of Ehrlichiosis.
Ehrlichiosis is caused by Ehrlichia organisms, specifically E. chaffeensis and granulocytic Ehrlichia. Known vectors include the lone star tick (Amblyomma americanum), the American dog tick (Dermacentor variabilis), and deer ticks (Ixodes dammini and Ixodes scapularis).
In the United States, most cases of ehrlichiosis are reported in the south-central and southern Atlantic areas of the country, but it has also been reported in the upper midwest. Persons at highest risk include those who live in endemic and highly wooded areas, engage in activities in high grassy areas, and own a pet that may introduce a tick into the home.
Source: Professional Guide to Diseases (Eighth Edition), 2005
Source: The 5-Minute Pediatric Consult, 2008
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