Ticks that vector Lyme disease move west into North Dakota

11 septiembre 2014

Ixodes scapularis, also known as the blacklegged tick or deer tick — is moving westward, and for the first time has been found to be established in North Dakota.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WVMRKKokwh8/140911125916.htm