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Table 1 Categorization of ticks for counting (adapted from EMEA/CVMP/005/00Final-Rev.2) [19]

From: Prevention of Babesia canis in dogs: efficacy of a fixed combination of permethrin and fipronil (Effitix®) using an experimental transmission blocking model with infected Dermacentor reticulatus ticks

Category General findings Attachment status
1 Live Free
2 Live Attached; unengorged*
3 Live Attached; engorged**
4 Dead Free
5 Dead Attached; unengorged
6 Dead Attached; engorged
  1. *No filling of the alloscutum evident.
  2. **Obvious or conspicuous filling of the alloscutum evident.