Neal Heffron with his daughter and Lyme-stricken dog, Dani.

Lyme-infected dogs: 95 percent never develop symptoms; no such luck for Dani

That dogs are enormously susceptible to the ravages of ticks is no surprise, but there is uncertainty over just how many dogs that are bitten by ticks end up as sick as Dani, and why. Canine veterinarians and researchers who study Lyme disease in animals often cite the statistic that 95 percent of dogs exposed to Lyme never show symptoms, even though a screening test may turn up positive. Continue Reading