Overview The cat flea's primary host is the domestic cat, but this is also the primary flea infesting dogs in most of the world. The cat flea can also maintain its life cycle on other carnivores and on the Virginia opossum.
Rabbits, rodents, ruminants and humans can be infested or bitten, but a population of cat fleas cannot be sustained by these aberrant hosts.
Life cycle- The female cat flea lays her eggs on the host.
- The eggs hatch into larvae, which feed on the host's blood contained in the adult flea's fecal material. Thus the adult population on the host feeds the larval population.
- Flea larvae spin a cocoon from which they eventually emerge onto the host.
- Newly emerged fleas are stimulated to jump to a new host within seconds of emerging from the cocoon. The new flea begins feeding on host blood within minutes.
Effects on the hosts
A few fleas on adult dogs or cats cause little harm unless the host becomes allergic to substances in saliva. The disease that results is called flea allergy dermatitis. Small animals with large infestations can lose enough blood to fleas feeding that anemia may result.
Fleas are also responsible for disease transmission.
Treating the Problem
The fleas that are actually on the cat represent only a fraction of the flea population present in the house, so treatment must include the surroundings as well as the cat.
Regularly vacuum your house, giving particular attention to carpets and upholstery. Because vibrations trigger fleas to come out of their cocoons, they often come alive right after vacuuming, while inside the vacuum bag. To prevent them from returning to your home, make sure the bag is sealed and quickly disposed of.
If you have a major flea infestation you should consult a professional exterminator and treat the house with special anti-flea products. Make sure you use only products that are not toxic to cats.
As for treating your cat, there are several good products on the market that are very safe and effective. Available from your vet, these products can be used orally (Program) or topically (Advantage or Frontline) to inhibit various stages of the fleas' life cycle.
Disease transmission
Cat fleas can transmit other parasites and infections to dogs and cats and also to humans. The most prominent of these are Bartonella, the tapeworm Dipylidium caninum, and murine typhus.
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