<i>Borrelia burgdorferi</i> Sensu Stricto DNA in Field-Collected <i>Haemaphysalis longicornis</i> Ticks, Pennsylvania, United States

Abstract

We collected questing Haemaphysalis longicornis ticks from southeastern counties of Pennsylvania, USA. Of 263 ticks tested by PCR for pathogens, 1 adult female was positive for Borrelia burgdorferi sensu stricto, yielding a 0.4% infection rate. Continued monitoring of this invasive tick is essential to determine its public health role.