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02/18/2015 05:26 PM EST
In the northeastern United States, warmer spring temperatures are leading to shifts in the emergence of the blacklegged ticks that carry Lyme disease and other tick-borne pathogens. At the same time, milder weather is allowing ticks to spread into new geographic regions.
Source
Cary Institute of Ecosystem Studies
This is an NSF News From the Field item.
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