RT Journal A1 Kuehn BM T1 EMerging tick-borne diseases expand range along with rebounding deer populations JF JAMA JO JAMA YR 2013 FD January 9 VO 309 IS 2 SP 124 OP 125 DO 10.1001/jama.2012.116881 UL http://dx.doi.org/10.1001/jama.2012.116881 AB Lyme disease remains the most common tickborne illness in the United States, with about 20 000 to 30 000 cases identified each year. But babesiosis, which is caused by the protozoan parasite Babesia microti, has received renewed attention as its range has expanded. Once known as “Nantucket fever” because it was common among individuals living—along with a robust population of deer, a key vector—on that New England coastal island, it is now considered endemic in Connecticut, Massachusetts, Minnesota, New Jersey, New York, Rhode Island, and Wisconsin.