The nematode (roundworm) Angiostrongylus (=Parastrongylus) cantonensis, additionally called the rodent lungworm, is a typical reason for human eosinophilic meningitis (neural angiostrongyliasis) and once in a while visual disease.Angiostrongylus costaricensis is the causal specialist of stomach angiostrongyliasis and is talked about here. Grown-up worms of A. cantonensis live in the pneumonic corridors and right ventricle of the typical authoritative host picture . The females lay eggs that incubate in the terminal parts of the aspiratory veins, yielding first-stage hatchlings. The main stage hatchlings move to the pharynx, are gulped, and went in the dung. They enter or are ingested by a gastropod middle of the road have picture . After two sheds, third-stage hatchlings are delivered picture which are infective to mammalian hosts. At the point when the tainted gastropod is ingested by the conclusive host, the third-stage hatchlings move to the mind where they form into youthful grown-ups picture . The youthful grown-ups come back to the venous framework and afterward the aspiratory supply routes where they become explicitly full grown. Of note, different creatures go about as paratenic (transport) has: in the wake of ingesting the contaminated snails, they convey the third-stage hatchlings which can continue their advancement when the paratenic have is ingested by a complete host. People can gain the disease by eating crude or half-cooked snails or slugs tainted with the parasite; they may likewise secure the contamination by eating crude produce that contains a little snail or slug, or part of one picture . There is some inquiry whether hatchlings can leave the tainted gastropods in sludge (which might be infective to people whenever ingested, for instance, on produce). Disease may likewise be gained by ingestion of invertebrate paratenic has containing L3 hatchlings (for example crabs, freshwater shrimp). In people, hatchlings move to the cerebrum, or once in a while to the lungs, where the worms at last bite the dust picture . Hatchlings may create to fourth or fifth stage in the human host, however appear to be unequipped for developing completely. A. cantonensis is referred to utilize various rodent species as authoritative hosts, including dark rodents (rattus), earthy colored rodents, (Rattus norvegicus), and cotton rodents (Sigmodon hispidus). Gastropod (snail and slug) middle of the road has are various and incorporate Achatina spp., Biomphlalaria spp., Bulinus spp., Lymnaea spp., Pomaecea spp., and that's only the tip of the iceberg. Aside from people, deviant contaminations have happened in a few types of wild and residential well evolved creatures and flying creatures. Most instances of A. cantonensis-related eosinophilic meningitis start from Southeast Asia and Pacific Islands. The parasite has likewise been accounted for from Africa, the Caribbean, Australia, Hawaii, and as of late the southern United States. The most prominent indication of A. cantonensis disease is eosinophilic meningitis brought about by the nearness of hatchlings in the cerebrum and resultant nearby host responses. Substantial manifestations (for example cerebral pain, fever, disquietude) just as shifting degrees of neurological brokenness are typically noted. A. cantonensis contamination may every so often demonstrate lethal. Visual angiostrongyliasis is related with uveitis, obscured vision, and a significant loss of visual keenness.