Feline Internal Multisystemic Parasites Study Guide
Overview and Clinical Importance
Internal parasites with multisystemic effects represent a significant category of feline diseases on the NAVLE. These parasites affect multiple organ systems simultaneously, causing clinical signs from subclinical infection to life-threatening disease.
This guide covers: roundworms (Toxocara cati), hookworms (Ancylostoma spp.), tapeworms (Dipylidium caninum, Taenia spp.), heartworm (Dirofilaria immitis), Toxoplasma gondii, Giardia spp., and lungworms (Aelurostrongylus abstrusus).
1. Roundworms (Toxocara cati)
Life Cycle and Transmission
Toxocara cati is the most common intestinal nematode of cats. Unlike T. canis in dogs, T. cati does NOT undergo transplacental transmission - kittens are NOT born infected.
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