PARASITES AND PARASITIC DISEASES OF DOMESTIC ANIMALS
The lifecycle of T. cati, while complex, is different from that of T.
canis in five important ways:
- Paratenic hosts, such as mice, play a more significant role in the lifecycle of T.
cati because of the more aggressive predatory nature of cats.
- Prenatal infection does not occur in the lifecycle of T. cati.
- A high percentage of larvae (hatching from ingested infective eggs) undefgo tracheal
migration, even in older, mature cats.
- Transmammary transmission is the major route of infection for T cati in
kittens. Tissue larvae and larvae acquired during pregnancy will migrate to the
mammary glands of lactating queens and be available for nursing kittens throughout the
- A wide range of other animals, in addition to mice, may also serve as paratenic hosts.
These include chickens, earthorms, and cockroaches.