This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. SAN DIEGO — Rickettsia is spread by ticks, ...

Tick collars protect dogs from nasty eight-legged, disease-carrying ticks and may also repel or kill other bothersome critters like fleas and lice. These collars can protect your dog from tick bites ...