General Information:
Cuterebra flies produce larvae (small worms) that infest the skin of rodents, squirrels, rabbits, dogs and cats. The flies lay eggs on the fur or in the immediate area of an animal. After the eggs hatch, the resulting larvae burrow into the animal's skin. A cyst forms around the larva, and the cyst has a small hole in the center through which the larva's head can be seen. After about 1 month, the mature larva emerges from the cyst and drops to the ground to continue its life cycle in the soil.
These parasites are routinely found in squirrels during the early hunting season. Some older hunters commonly refer to them as "wolves".
Treatment Information:
1. A general anesthetic may be required for removal of the larva and cleaning of the wound.
2. The larva should not be crushed while still embedded in the skin, because your pet could undergo a serious, shock-like reaction.
3. Antibiotics are necessary to treat the associated bacterial infection after the larva is removed.
We hope that you will find this information helpful in your quest for better pet care. If you have any questions or comments, please call your veterinarian's office, or, feel free to e-mail us.
David E. Hammett, DVM
and the Staff of All Creatures Veterinary Clinic,
PC
