My cats have never been outside. Until I moved they had never had fleas or worms. I moved into a new house in July and have continually had problems with both fleas and tape worms. How can they keep getting these if they never are exposed to the outside? I have 3 cats. I've used Advantage but they still keep getting the worms and fleas.
Your home and yard should probably be treated for fleas. The cats can also be treated more aggressively with Advantage. Many vets recommend applying advantage every 2 weeks in areas with a high incidence of fleas. Talk to your vet about it. vetcare