We based our measure of risk only on the density of host-seeking I. scapularis nymphs (hereafter density of nymphs) without calculating the proportion infected with Borrelia burgdorferi because the small number of nymphs collected on most properties prevented an accurate estimate of infection prevalence.
![[This page as RDF]](http://data.gesis.org/somesci/static/rdf-icon.gif){kind=icon}