期刊
EMERGING INFECTIOUS DISEASES
卷 20, 期 2, 页码 225-231出版社
CENTERS DISEASE CONTROL
DOI: 10.3201/eid2002.130644
关键词
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资金
- National Institute of Health [R03 AI-076856-01]
- National Institutes of Health Ecology and Evolution of Infectious Diseases Program award [R01 GM105246-01]
- Gordon and Llura Gund Foundation
- Yale Institute for Biospheric Studies Faculty Support Endowment Fund
Human babesiosis is an emerging tick-borne disease caused by the intraerythrocytic protozoan Babesia microti. Its geographic distribution is more limited than that of Lyme disease, despite sharing the same tick vector and reservoir hosts. The geographic range of B. microti is expanding, but knowledge of its range is incomplete and relies exclusively on reports of human cases. We evaluated the utility of tick-based surveillance for monitoring disease expansion by comparing the ratios of the 2 infections in humans and ticks in areas with varying babesiosis endemicity. We found a close association between human disease and tick infection ratios in long-established babesiosis-endemic areas but a lower than expected incidence of human babesiosis on the basis of tick infection rates in new disease-endemic areas. This finding suggests that babesiosis at emerging sites is underreported. Vector-based surveillance can provide an early warning system for the emergence of human babesiosis.
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