Pinworm is the most common roundworm infection in the United States. It most often occurs in children and can spread easily in school or daycare. The infection starts when eggs enter the mouth and travel to the intestines. The eggs hatch and develop into adult pinworms. 18 мая 2021 г.
What is the largest and most common intestinal roundworm in humans?
Ascaris lumbricoides is the "large roundworm" of humans, growing to a length of up to 35 cm (14 in). It is one of several species of Ascaris. An ascarid nematode of the phylum Nematoda, it is the most common parasitic worm in humans.
Where are roundworms commonly found?
Ascaris parasites live in the intestine. Ascaris eggs are passed in the feces (poop) of infected people. If an infected person defecates outside (for example, near bushes, in a garden, or in a field), or if the feces of an infected person is used as fertilizer, worm eggs are deposited on soil.
How common is roundworm?
Roundworm infection is the most common type of worm infection in the world. It is rare in the U.S. Roundworm eggs live in soil that is contaminated by feces. The eggs can get into the body through the mouth. The infection can then spread from person to person through infected feces.
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