TOXOCARIASIS VISCERAL AND OCULAR LARVA MIGRANS: IS IT STILL A NEGLECTED ZOONOTIC DISEASE? | ||||
| Journal of the Egyptian Society of Parasitology | ||||
| Article 6, Volume 54, Issue 2, August 2024, Page 213-226 PDF (939.95 K) | ||||
| DOI: 10.21608/jesp.2024.373520 | ||||
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| Authors | ||||
| Tosson A. Morsy1; YASIR MOHAMMED A. ALQURASHI2; HANI A. OZBAK3 | ||||
| 1Department of Parasitology, Faculty of Medicine, Ain Shams University, Cairo 11566, Egypt | ||||
| 2Department of Medical Laboratory, College of Applied Medical Sciences, Taibah University, Yanbu, 46422, Saudi Arabia | ||||
| 3Department of Clinical Laboratory Sciences, Taibah University, 344, Al-Madinah Al- Monawra, 41411, Saudi Arabia | ||||
| Abstract | ||||
| Zoonotic toxocariasis (visceral larva migrans or VLM & ocular larva migrans or OLM) refers to human infection caused by helminths that are not natural human parasites. Toxocariasis is an underestimated geohelminthic infection may be worldwide. Toxocariasis occurs as a result of human infection with the dog ascarid larvae, Toxocara canis or less commonly, the cat ascarid larvae, T. cati. VLM is mainly a disease of young children, especially those with exposure to playgrounds and sandboxes contaminated by dog or cat feces. While common globally, prevalence in both animals and people is highest in developing countries. In developed countries, more infections are detected among persons in lower socioeconomic strata. TVLM & OLM clinical presentations, although most infections are asymptomatic, yet in VLM, which occurs mostly in preschool children, larvae invade multiple tissues (mainly liver, lung, skeletal muscle, or heart) causing nonspecific symptoms as fever, myalgia, weight loss, cough, rashes, hepatosplenomegaly accompanied by hypereosinophilia. Migration to CNS (neurotoxocariasis) is uncommon and can cause eosinophilic meningoencephalitis and epilepsy. Death can occur with severe cardiac, pulmonary, or neurologic involvement. | ||||
| Keywords | ||||
| Toxocariasis; VLM; OLM; Man; Review article | ||||
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