It is not known whether other closelyrelated toxocara species can infect humans e. Learn toxocara canis with free interactive flashcards. Humans become infected by ingesting either embryonated eggs from soil geophagia, pica, dirty hands or raw vegetables, or larvae from undercooked giblets. Toxocariasis is an illness of humans caused by larvae immature worms of either the dog roundworm toxocara canis, the cat roundworm toxocara cati or the fox roundworm toxocara canis. Toxocariasis centers for disease control and prevention. Toxocara canis is a ubiquitous roundworm in dogs that causes both cutaneous larva migrans and visceral larva migrans in humans, and affects many puppies often less than 6 months old and adult dogs via ingestion of embryonated ova. However, some people are at higher risk of infection, including. The diagnosis relies upon sensitive immunological methods elisa or westernblot which use toxocara excretory. Children people who accidentally eat dirt dog or cat owners.
The name is derived from the greek word toxon, meaning bow or quiver, and the latin word caro, meaning flesh. In humans, toxocariasis is considered an aberrant infection because humans are incidental hosts, as the parasites cannot successfully reach full maturity in the human body. They live in the small intestine of the definitive host. Toxocariasis is often called visceral larva migrans vlm. Choose from 51 different sets of toxocara canis flashcards on quizlet. Depending on geographic location, degree of eosinophilia, eye andor pulmonary signs, the terms ocular larva migrans olm. Glickman2 1department of parasitology, rangueil university hospital, toulouse, france 2department of veterinary pathobiology, school of veterinary medicine, purdue university, west lafayette, indiana, usa introduction human toxocariasis is a zoonosis caused by in. Humans may accidentally ingest eggs in soil contaminated by stool from infected animals or may ingest undercooked infected transfer hosts eg, rabbits. Human toxocariasis is a helminthozoonosis due to the migration of toxocara species larvae through human organism. Abstract toxocariasis is a disease caused by worms toxocara canis, which is the normal host dog. Highlights of human toxocariasis pubmed central pmc. Gusanos invasores del cuerpo humano toxocara canis. Toxocariasis in humans is caused by infection with larvae of toxocara spp. These pathogen safety data sheets, regulated under workplace hazardous materials information system whmis legislation, are produced for personnel working in the life sciences as quick safety reference material relating to infectious microorganisms.