18 febrero 2015
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.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Ytt6BrRNCrw/150218122947.htm
