Toxocariasis

Toxocariasis is a zoonotic parasitic infection caused by the accidental ingestion of embryonated eggs or larvae of nematode roundworms, most commonly *Toxocara canis* from dogs or *Toxocara cati* from cats Primarily affecting young children and individuals exposed to contaminated soil or undercooked paratenic host tissues, the ingested larvae penetrate the intestinal wall and migrate through human host tissues without maturing into adult worms Clinical manifestations result from larval migration...

Toxocariasis is a zoonotic parasitic infection caused by the accidental ingestion of embryonated eggs or larvae of nematode roundworms, most commonly *Toxocara canis* from dogs or *Toxocara cati* from cats

Primarily affecting young children and individuals exposed to contaminated soil or undercooked paratenic host tissues, the ingested larvae penetrate the intestinal wall and migrate through human host tissues without maturing into adult worms

Clinical manifestations result from larval migration and local inflammatory host reactions, presenting predominantly as visceral toxocariasis—characterized by fever, cough, wheezing, hepatomegaly, and peripheral eosinophilia—or ocular toxocariasis, marked by unilateral granulomatous retinal lesions, uveitis, and potential vision loss