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Volume 20, Number 2—February 2014
Research

Monitoring Human Babesiosis Emergence through Vector Surveillance New England, USA

Maria A. Diuk-WasserComments to Author , Yuchen Liu, Tanner K. Steeves, Corrine Folsom-O’Keefe, Kenneth R. Dardick, Timothy Lepore, Stephen J. Bent, Sahar Usmani-Brown, Sam R. Telford, Durland Fish, and Peter J. Krause
Author affiliations: Yale School of Public Health, New Haven, Connecticut, USA (M.A. Diuk-Wasser, Y. Liu, T.K. Steeves, C. Folsom-O’Keefe,; S.J. Bent, S. Usmani-Brown, D. Fish, P.J. Krause); Uppsala University, Uppsala, Sweden (Y. Liu); Audubon Connecticut, Southbury, Connecticut, USA (C. Folsom-O’Keefe); Mansfield Family Practice, Storrs, Connecticut, USA (K.R. Dardick); Nantucket Cottage Hospital, Nantucket, Massachusetts, USA (T. Lepore); University of Adelaide, Adelaide, South Australia, Australia (S.J. Bent); Tufts University, Boston, Massachusetts, USA (S.R. Telford III); L2 Diagnostics, New Haven (S. Usmani-Brown)

Main Article

Table 3

Comparison between the ratio of Lyme disease and babesiosis incidence in humans and the ratio of Borrelia burgdorferi and Babesia microti infection in ticks (‘tick ratio’), New England, 2007 and 2010*

Data source, y Lyme disease† Babesiosis† Human ratio‡ B. burgdorferi§ B. microti§ Tick ratio¶ Human/tick ratio
Private practice
Nantucket, 2010 7,500 1,250 6.0 0.21 0.09 2.33 2.6
Northeastern CT, 2010
 660
 70
 9.4
 0.26
 0.05
 5.20
 1.8
Reported to CT DPH or MA DPH
Nantucket, 2010 194 56 3.5 0.21 0.09 2.33 1.5
Northeastern CT, 2010 211 7 30.0 0.26 0.05 5.20 5.8
Southeastern CT, 2007 191 85 2.3 0.15 0.17 0.88 2.6

*CT DPH, Connecticut Department of Public Health; MA DPH, Massachusetts Department of Public Health.
†Annual incidence rates of Lyme disease and human babesiosis calculated for the towns and years for which tick assessments were conducted by using private practice or state-reported cases and mid-year population estimates from CT DPH (23) and MA DPH (24).
‡Ratio of human Lyme disease incidence rates to babesiosis incidence rates.
§Nymphal Ixodes scapularis tick infection prevalence with Borrelia burgdorferi and Babesia microti.
¶ Ratio of I. scapularis ticks infection prevalence with B. burgdorferi and infection prevalence with B. microti.

Main Article

Page created: January 17, 2014
Page updated: January 17, 2014
Page reviewed: January 17, 2014
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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