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Babesiosis is caused by microscopic parasites that infect red blood cells. Many different species of Babesia parasites have been found to infect animals, but most human cases of babesiosis in the United States are caused by Babesia microti. Babesiosis is transmitted by deer ticks. It became reportable in North Dakota in 2011.

2016 County Data*

*Data are preliminary



Babesiosis Historical Data

Year Number of Cases
2007 NR
2008 NR
2009 NR
2010 NR
2011 1
2012 0
2013 1
2014 0
2015 3
2016 1
2017 0
NR=not reportable
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