Tip - How Is Roundworm Transmitted? | LIVESTRONG.COM

Roundworm is a parasite that dwells in human intestines. Its scientific name is Ascaris lumbricoides, and the human infection is called ascariasis. The adult female worm can grow up to 12 inches; the male worm is usually smaller. The infection is rare in the U.S., according to the Centers for Disease Control and Prevention, only seen in rural...