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Volume 20, Number 10—October 2014

Human Babesiosis, Maine, USA, 1995–2011

Robert Smith, Susan P. EliasComments to Author , Timothy J. Borelli, Bayan Missaghi, Brian J. York, Robert A. Kessler, Charles B. Lubelczyk, Eleanor H. Lacombe, Catherine M. Hayes, Michael S. Coulter, and Peter W. Rand
Author affiliations: Maine Medical Center Research Institute, South Portland, Maine, USA (R.P. Smith Jr,, S.P. Elias, C.B. Lubelczyk, E.H. Lacombe, P.W. Rand); Maine General Medical Center, Augusta, Maine, USA (T.J. Borelli); University of Calgary, Department of Medicine, Calgary, Alberta, Canada (B. Missaghi); Alberta Health Services (Calgary Zone), Calgary (B. Missaghi); Kadlec Regional Medical Center, Richland, Washington, USA (B.J. York); University of Maryland, Baltimore, Maryland, USA (R.A. Kessler); University of Vermont College of Medicine, Burlington, Vermont, USA (C. M. Hayes); Denver Health and Hospital Authority, Denver, Colorado, USA (M.S. Coulter)

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Table 2

Emergence of Babesia microti in Ixodes scapularis ticks, Maine, 1995–2011

Year(s) (ref.) Sample type PCR primers† All towns sampled, N = 90*
Town of Wells
No. ticks positive for Babesia spp./no. tested No. B. microti/no. sequenced (%) No. ticks positive for Babesia spp./no. tested No.B. microti/no. sequenced (%)
1995–96 (7)
Questing adult tick (salivary glands)
1/25 (4)

1/10 (10)
1995–1997 (8)
Partially engorged nymphal and adult ticks on rodent, dog, cat, and human hosts (salivary glands)
3/65 (5)

2/21 (9)
1995–1998 (this study)
Questing adult ticks (salivary glands)

2003 (9)
Questing adult ticks (tick bodies)
7/15 (47)

7/15 (47)
2006–07, 2010–11 (this study) Questing adult ticks (tick bodies) Bab-1/4 (2006–07), PIRO-A/B 55/728 7/8 (88) 18/126 6/6 (100)

*During 1995–2011, B. microti was found only in the southern coastal towns of Kittery, Wells, and Cape Elizabeth; B. odocoilei was found in Cape Elizabeth, Wells, and 29 additional, mostly coastal, towns.
†The primer pair PIRO-A, PIRO-B targets the 18S rRNA gene, 408 bp for B. odocoilei/ 437 bp for B. microti (7); the primer pair Bab-1, Bab-4 targets the 18S RNAgene, 238 bp for Babesia spp. (11).

Main Article

Page created: September 22, 2014
Page updated: September 22, 2014
Page reviewed: September 22, 2014
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