Toxocara cati in cats and humans – what you need to know. ... Other sources of human infection are raw/undercooked meat from intermediate hosts (e.g. Toxocara vitulorum is an intestinal ascarid parasite of cattle and water buffaloes (Bubalus bubalis).Although the parasite may occur worldwide, it is of particular economic importance in tropical and subtropical regions, mainly due to lacking or inefficient control [].T. 833-840, 90 Printed m Great Britain 002&-75I9/90S3.00 + 0.00 Pergomon Press pic 1990 Australian Society for Parasitology THE LIFE CYCLE OF TOXOCARA VITULORUM IN ASIAN BUFFALO {BUBALUS BUBALIS) S. A. ROBERTS* Faculty of Veterinary Medicine and Animal Science, University ofPeradeniya, Peradeniya, Sri Lanka (Received 6 June 1989; … Toxocara canis (or toxocariasis in dogs) is a parasitic worm that is located in a dog's stomach and intestines.Here, this roundworm can reach considerable almost 20 centimeters in length. Abstract. chickens or cattle). Toxocara vitulorum is a species of parasitic roundworms that infects cattle, buffaloes, bisons and other bovids. Ascaris suum in pigs and Toxocara vitulorum in cattle), a variety of domesticated and wild mammals (e.g. The Toxocaridae are a zoonotic family of parasitic nematodes that infect canids and felids and which cause toxocariasis in humans (visceral larva migrans and ocular larva migrans). In humans, animal Toxocara species do not reach the adult stage, and clinical signs, when present, are due to migrating larvae. Toxocara vitulorum, an ascarid nematode, is a parasite predominantly described in cattle and water buffalo in tropical and subtropical regions of the world. Toxocara vitulorum is an Ascarid nematode infecting the small intestine of buffalo and cattle particularly neonate calves, with the postnatal route through milk is the main infection source. With more than 50 described genera, nematode worms within the superfamily Ascaridoidea are ubiquitous helminth parasites being found in a variety of mammals inclusive of farmed livestock (e.g. Toxocara vitulorum infection in calves has been diagnosed in several European and in most subtropical and tropical countries. It is found worldwide, including Europe, but is more abundant in regions with humid tropical or subtropical climate in Africa, America and Asia. In the faeces of this calf, eggs of Toxocara vitulorum were found. A Dutch farmer with beef cattle and suckling calves noticed one of the calves suffering from diarrhoea and observed large white worms near the perineum. Introduction. ; Toxocara cati, which infects cats and lacks intermediate hosts. 20, No. Roberts JA(1). The life cycle of T. vitulorum is unique in that the routes of infection and the life stages observed are generally different in adult cows compared to calves. T. malaysiensis of cats). Author information: (1)Department of Parasitology, Faculty of Veterinary Medicine and Animal Science, University of Peradeniya, Sri Lanka. The majority of the cows in the herd were of the Piemontese breed previously imported from southern France. Causal Agents. The most common Toxocara parasite of concern to humans is T. canis, which puppies usually contract from their mother before birth or from her milk.The larvae mature rapidly in the puppy’s intestine; when the pup is 3 or 4 weeks old, the worms inside the puppy begin to produce large numbers of eggs that contaminate the environment through the puppy’s feces. The worms are unable to reproduce in humans. This study was completed to determine the prevalence and distribution of Toxocara vitulorum infection in cattle and buffalo calves and investigate its clinical impact in northern Lao PDR (Peoples Democratic Republic).
The large roundworms (ascaridoid nematodes) of dogs and cats are common, especially in puppies and kittens. 7, pp. It is also called Neoascaris vitulorum.. 1. INTRODUCTION. Of the three species Toxocara canis, Toxascaris leonina, and Toxocara cati, the most important is T canis, not only because its larvae may migrate in people (as do larvae of T cati), but also because infections are generally common and may impact puppy health. Until recently, T. vitulorum was regarded as a nematode infection of cattle mainly in the tropics and subtropics, but is a common cause of toxocariasis in cattle, water buffalo and bison worldwide
Toxocara vitulorum: treatment based on the duration of the infectivity of buffalo cows (Bubalus bubalis) for their calves. Female roundworms can also sometimes release a large amount of resistant eggs into this environment where the eggs can survive for years. International Journal for Parasilology Vol. Toxocariasis in humans is caused by infection with larvae of Toxocara spp., which are common ascarid roundworms of mammals.Confirmed zoonotic species include the dog roundworm T. canis (presumed most common) and the cat roundworm T. cati (frequency not known).It is not known whether other closely-related Toxocara species can infect humans (e.g.