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Volume 26, Number 4—April 2020
CME ACTIVITY - Synopsis

Ecology and Epidemiology of Tickborne Pathogens, Washington, USA, 2011–2016

Elizabeth A. Dykstra1Comments to Author , Hanna N. Oltean1, David Kangiser, Nicola Marsden-Haug, Stephen M. Rich, Guang Xu, Min-Kuang Lee, Muhammad G. Morshed, Christine B. Graham, and Rebecca J. Eisen
Author affiliations: Washington State Department of Health, Olympia, Washington, USA (E.A. Dykstra, H.N. Oltean, D. Kangiser, N. Marsden-Haug); University of Massachusetts–Amherst, Amherst, Massachusetts, USA (S.M. Rich, G. Xu); British Columbia Centre for Disease Control, Vancouver, British Columbia, Canada (M.-K. Lee, M.G. Morshed); Centers for Disease Control and Prevention, Fort Collins, Colorado, USA (C.B. Graham, R.J. Eisen)

Main Article

Table

Pathogens detected in unfed, field-collected Ixodes species ticks, Washington state, 2011–2016

Pathogen No. positive/no. tested (%)
I. angustus
 I. pacificus
 I. spinipalpis
Adult Nymphs Adult Nymphs Larvae Adults Nymphs Larvae
Anaplasma phagocytophilum 0/79 0/16 5/240 (2.1) 0/17 0/1 1/4 (25.0) 0/122 0/108
Borrelia species* 1/82 (1.2) 0/16 4/361 (1.1) 0/17 0/1 1/5 (20.0) 1/122 (0.8) 0/108
Borrelia burgdorferi sensu lato 1/83 (1.2) 0/16 22/403 (5.5) 0/17 0/1 1/5 (20.0) 3/122 (4.1) 0/108
B. burgdorferi sensu stricto 0/41 0/4 14/340 (4.1) 1/14 (7.1) 0/0 0/3 0/63 0/0
B. miyamotoi 0/38 0/4 10/211 (4.7) 0/16 0/0 0/2 0/67 0/0

*Not differentiated to species.

Main Article

1These authors contributed equally to this article.

Page created: March 13, 2020
Page updated: March 13, 2020
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