Ticks are arachnids that live solely on the blood of animals—and sometimes humans. Tick bites can range from mild nuisance to serious medical condition.
Contrary to popular belief, contracting fleas has nothing to do with the cleanliness or condition of your home—fleas can and do infest everyone. However, fleas usually enter your yard via wild animals, such as squirrels, rabbits, feral cats, possums, etc. Then, either you, your family or a pet unknowingly bring these outside fleas into your home.
Unfortunately, the same features that make flea collars effective also make them dangerous to both pets and humans—serious, even life threatening, side-effects have been linked with exposure to the chemicals found in flea collars.