There are 3 main types of tick that can adversely affect your dog: 1. the brown dog tick (Rhipicephalus sanguineus) 2. the bush tick (Haemaphysalis longicornis) 3. the paralysis tick (Ixodes holocyclus) The first two can be carriers for a range of infectious agents, but rarely cause fatalities. The latter, the paralysis tick is by far the most dangerous, possessing …