. Author manuscript; available in PMC: 2017 Nov 1.

Published in final edited form as: Curr Opin Hematol. 2016 Nov;23(6):573–580. doi: 10.1097/MOH.0000000000000287

Table 1.

Babesia microti seroprevalence studies

Study	Location	Years	No. subjects	B. microti seroprevalence	B. microti PCR positive
Popovsky et al.[7]	MA	1988	779	3–5%	N/A
Leiby et al.[9]	CT	1999	1,745	1.4%	53% (10/19 seropositives)
Johnson et al.[10]	CT	2000–2007	27,592	0.75–1.5%	N/A
Johnson et al.[11]	CT	2009	1,002	2.5%	0.3% (3/1002)
Tonnetti et al.[12]	MN	2010–2011	2,150	2%	2.4% (1/42 seropositives)
O’Brien et al.[13]	Canada	2013	13,993	0%	0%