In Tennessee, which condition is a medical concern transmitted by cat fleas?

Cat fleas are primarily known to be vectors for the transmission of tapeworms, specifically the species Echinococcus granulosus and Dipylidium caninum, which can infect dogs and other animals. In this context, the concern arises because if a cat is infested with fleas and those fleas are accidentally ingested by a dog, this can lead to the dog becoming infected with tapeworms. This type of transmission is especially relevant in environments where pets coexist, as both cats and dogs may share the same space and even interact with each other.

The other conditions mentioned in the question are not directly linked to cat fleas. Heartworm is transmitted by mosquitoes, not fleas. Rocky Mountain spotted fever and Lyme disease are both caused by tick bites, not flea infestations. Understanding these distinctions helps clarify why dog tapeworms are the primary medical concern related to cat fleas in Tennessee.