Note: You can read the full article HERE.
By Kiersten J. Kugeler et al.
Lyme disease occurs in specific geographic regions of the United States. We present a method for defining high-risk counties based on observed versus expected number of reported human Lyme disease cases. Applying this method to successive periods shows substantial geographic expansion of counties at high risk for Lyme disease.
Source: Kiersten J. Kugeler, Grace M. Farley, Joseph D. Forrester, Paul S. Mead. Geographic Distribution and Expansion of Human Lyme Disease, United States. Emerging Infectious Diseases, Volume 21, Number 8 – August 2015 http://doi.org/10.3201/eid2108.141878