|Title||Northward range expansion of Ixodes scapularis evident over a short timescale in Ontario, Canada|
|Publication Type||Journal Article|
|Year of Publication||2017|
|Authors||Clow KM, Leighton PA, Ogden NH, Lindsay LR, Michel P, Pearl DL, Jardine CM|
|Keywords||emergence, expansion, geographic, ixodes, lyme borrelia, range, scapulars, ticks|
The invasion of the blacklegged tick, Ixodes scapularis into Ontario, Canada poses a significant risk to public health because it is a vector for numerous pathogens, including Borrelia burgdorferi sensu stricto, the causative agent of Lyme disease. Baseline field sampling in 2014 and 2015 detected I. scapularis and B. burgdorferi at sites across southern, eastern and central Ontario, including a hot spot in eastern Ontario. A "speed of spread" model for I. scapularis developed by Leighton and colleagues (2012) estimated that the tick's range was expanding northward at 46 km/year.