American toad American toad The American toad ("Anaxyrus americanus") is a common species of toad found throughout the eastern United States and Canada. It is divided into three subspecies—the eastern American toad ("A. a. americanus"), the dwarf American toad ("A. a. charlesmithi"), and the rare Hudson Bay toad ("A. a. copei"). Recent taxonomic treatments place this species in the genus "Anaxyrus" instead of "Bufo". The eggs of the American toad are laid in two strings and can hatch in 2–14 days. When hatched the tadpoles are recognizable by their skinny tails in relation to the size of their black bodies. They may
Visceral larva migrans Visceral larva migrans Visceral larva migrans (VLM) is a condition in humans caused by the migratory larvae of certain nematodes, humans being a dead-end host, and was first reported in 1952. Nematodes causing such zoonotic infections are "Baylisascaris procyonis", "Toxocara canis", "Toxocara cati", and "Ascaris suum". These nematodes can infect but not mature in humans and after migrating through the intestinal wall, travel with the blood stream to various organs where they cause inflammation and damage. Affected organs can include the liver, heart (causing myocarditis) and the CNS (causing dysfunction, seizures, and coma). A special variant is ocular larva migrans