Prevalence and Diversity of Tick-Borne Pathogens in Nymphal Ixodes scapularis (Acari: Ixodidae) in Eastern National Parks.

Autor:	Johnson TL; Bacterial Diseases Branch, Division of Vector-Borne Diseases, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, 3156 Rampart Rd., Fort Collins, CO 80521 (uzj6@cdc.gov; hyb4@cdc.gov; kje5@cdc.gov; hyn8@cdc.gov; uzp7@cdc.gov; fth3@cdc.gov; dyn2@cdc.gov)., Graham CB; Bacterial Diseases Branch, Division of Vector-Borne Diseases, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, 3156 Rampart Rd., Fort Collins, CO 80521 (uzj6@cdc.gov; hyb4@cdc.gov; kje5@cdc.gov; hyn8@cdc.gov; uzp7@cdc.gov; fth3@cdc.gov; dyn2@cdc.gov)., Boegler KA; Bacterial Diseases Branch, Division of Vector-Borne Diseases, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, 3156 Rampart Rd., Fort Collins, CO 80521 (uzj6@cdc.gov; hyb4@cdc.gov; kje5@cdc.gov; hyn8@cdc.gov; uzp7@cdc.gov; fth3@cdc.gov; dyn2@cdc.gov)., Cherry CC; Biological Resources Division, Wildlife Health Branch and Office of Public Health, National Park Service, 1201 Oakridge Dr., Suite 200, Fort Collins, CO 80525 ( imv5@cdc.gov; danielle_buttke@nps.gov ).; Epidemic Intelligence Service, Division of Scientific Education and Professional Development, Center for Surveillance, Epidemiology, and Laboratory Services.; Rickettsial Zoonoses Branch, Division of Vector-Borne Diseases, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, 1600 Clifton Rd., Atlanta, GA 30329-4027., Maes SE; Bacterial Diseases Branch, Division of Vector-Borne Diseases, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, 3156 Rampart Rd., Fort Collins, CO 80521 (uzj6@cdc.gov; hyb4@cdc.gov; kje5@cdc.gov; hyn8@cdc.gov; uzp7@cdc.gov; fth3@cdc.gov; dyn2@cdc.gov)., Pilgard MA; Bacterial Diseases Branch, Division of Vector-Borne Diseases, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, 3156 Rampart Rd., Fort Collins, CO 80521 (uzj6@cdc.gov; hyb4@cdc.gov; kje5@cdc.gov; hyn8@cdc.gov; uzp7@cdc.gov; fth3@cdc.gov; dyn2@cdc.gov)., Hojgaard A; Bacterial Diseases Branch, Division of Vector-Borne Diseases, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, 3156 Rampart Rd., Fort Collins, CO 80521 (uzj6@cdc.gov; hyb4@cdc.gov; kje5@cdc.gov; hyn8@cdc.gov; uzp7@cdc.gov; fth3@cdc.gov; dyn2@cdc.gov)., Buttke DE; Biological Resources Division, Wildlife Health Branch and Office of Public Health, National Park Service, 1201 Oakridge Dr., Suite 200, Fort Collins, CO 80525 (imv5@cdc.gov; danielle_buttke@nps.gov)., Eisen RJ; Bacterial Diseases Branch, Division of Vector-Borne Diseases, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, 3156 Rampart Rd., Fort Collins, CO 80521 (uzj6@cdc.gov; hyb4@cdc.gov; kje5@cdc.gov; hyn8@cdc.gov; uzp7@cdc.gov; fth3@cdc.gov; dyn2@cdc.gov).
Jazyk:	angličtina
Zdroj:	Journal of medical entomology [J Med Entomol] 2017 May 01; Vol. 54 (3), pp. 742-751.
DOI:	10.1093/jme/tjw213
Abstrakt:	Tick-borne pathogens transmitted by Ixodes scapularis Say (Acari: Ixodidae), also known as the deer tick or blacklegged tick, are increasing in incidence and geographic distribution in the United States. We examined the risk of tick-borne disease exposure in 9 national parks across six Northeastern and Mid-Atlantic States and the District of Columbia in 2014 and 2015. To assess the recreational risk to park visitors, we sampled for ticks along frequently used trails and calculated the density of I. scapularis nymphs (DON) and the density of infected nymphs (DIN). We determined the nymphal infection prevalence of I. scapularis with a suite of tick-borne pathogens including Borrelia burgdorferi, Borrelia miyamotoi, Anaplasma phagocytophilum, and Babesia microti. Ixodes scapularis nymphs were found in all national park units; DON ranged from 0.40 to 13.73 nymphs per 100 m2. Borrelia burgdorferi, the causative agent of Lyme disease, was found at all sites where I. scapularis was documented; DIN with B. burgdorferi ranged from 0.06 to 5.71 nymphs per 100 m2. Borrelia miyamotoi and A. phagocytophilum were documented at 60% and 70% of the parks, respectively, while Ba. microti occurred at just 20% of the parks. Ixodes scapularis is well established across much of the Northeastern and Mid-Atlantic States, and our results are generally consistent with previous studies conducted near the areas we sampled. Newly established I. scapularis populations were documented in two locations: Washington, D.C. (Rock Creek Park) and Greene County, Virginia (Shenandoah National Park). This research demonstrates the potential risk of tick-borne pathogen exposure in national parks and can be used to educate park visitors about the importance of preventative actions to minimize tick exposure. (Published by Oxford University Press on behalf of Entomological Society of America 2016. This work is written by US Government employees and is in the public domain in the US.)
Databáze:	MEDLINE
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