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<title>2004 Infectious Disease - Ehrlichiosis</title>
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      <h2 align="left"><font face="Arial" color="#FFFFFF">2004 Indiana Report of Infectious
      Diseases</font></h2>
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<h2 align="center">Ehrlichiosis</h2>
<p align="left">Human Monocytic Ehrlichiosis (HME) is caused by the bacteria <i>Ehrlichia 
chaffeensis</i> and is transmitted to humans by the lone star tick, <i>Amblyomma 
americanum</i>. Human Granulocytic Ehrlichiosis (HGE) is caused by the bacteria 
Anaplasma phagocytophilum and is transmitted to humans by the deer tick, <i>
Ixodes scapularis</i>. </p>
<p align="left">From 2000-2004, 18 cases of ehrlichiosis were reported in Indiana: 16 cases 
of HME and 2 cases of HGE. There were no reported cases of ehrlichiosis in 2004 
in Indiana. <br>
<a target="_blank" href="EhrlichiosisFig1.htm">Figure 1</a> shows the number of 
reported cases by year for 2000-2004. </p>
<p align="left">All cases of HME occurred in residents of Southwestern Indiana counties, 
where the lone star tick is most prevalent. All cases for which race was 
reported were white. </p>
<p align="left">You can learn more about ehrlichiosis by visiting the following Web site:<br>
http://www.cdc.gov/ncidod/dvrd/ehrlichia/Index.htm</p>
<p align="left">&nbsp;</p>
<p align="left"><font face="Arial"><b>Back to <a href="idtoc.htm">Table of Contents</a></b></font></p>
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