Skip to main content
. 2018 Aug 22;13(8):e0201924. doi: 10.1371/journal.pone.0201924

Fig 2. Geographic occurrence index of three tick species most highly submitted in the passive surveillance system program in Québec from 2007–2015, for (A) I. cookei, (B) D. variabilis and (C) A. americanum ticks submitted.

Fig 2

The index is the number of submissions normalized by the human population size at the census subdivision level. Index values are grouped by quartiles.