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Volume 5, Number 5—October 1999

Synopsis

The Human Ehrlichioses in the United States

Jennifer H. McQuiston, Christopher D. Paddock, Robert C. Holman, and James E. ChildsComments to Author 
Author affiliations: Centers for Disease Control and Prevention, Atlanta, Georgia, USA

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Table

Average annual ehrlichiosis incidence (per one million population) for reporting statesa on the basis of 1995 census data (18)

State Incidence
Human monocytic ehrlichiosis Human granulocytic ehrlichiosis
Arkansas 5.53 0
Arizona 0.12 0
California 0.02 0.03
Connecticut 0.92 15.90
Florida 0.74 0
Illinoisl 0.11 0.03
Indiana 0.91 0
Kentucky 0.40 0
Main 0 0
Minnesota 0.22 3.90
Missouri 3.05 0
North Carolina 4.72 0.05
New Hampshire 0 0
New Jersey 1.47 0.17
New York 0.38 2.68
Oklahoma 2.90 0
Pennsylvania 0.01 0.03
Rhode Island 0 0.67
Texas 0.20 0
Virginia 0.68 0
Wisconsin 0 8.79

aIncludes states that consider ehrlichiosis notifiable, as well as five states where data are routinely collected. Michigan, South Carolina, and Tennessee did not differentiate between cases of human monocytic ehrlichiosis and human granulocytic ehrlichiosis and are not included in this table.

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