The infection can then spread from person to person through infected feces. Roundworms can live inside the small intestine for up to 2 years. The worms are about as thick as a pencil. They can grow to be about 13 inches long.
Can roundworms be long?
They're known as soil-transmitted helminths (STH) because the infection spreads through contaminated soil. Ascaris, sometimes abbreviated as A., is the group of worms that cause ascariasis. The worm looks like the common earthworm. It's about 6 to 13 inches long and about as thick as a pencil.
What happens if roundworms go untreated?
When a case of roundworms is untreated, the parasites can multiply quickly in the intestines and grow to the point where the presence of numerous adult worms gives the puppy a potbellied appearance. Coughing.
Can roundworms get big?
Dogs get two main roundworm species: Toxocara canis and Toxascaris leonina. Toxocara canis is worse, and people can get it, too. They're usually white or light brown and can be up to a few inches long. (They look like spaghetti.)
How long do roundworms get in humans?
They vary in length from several millimetres to up to two metres. Roundworms are common in warm tropical countries. Children are more often affected than adults. Treatment is usually very effective but wiping out (eradication of) roundworm infections has proved to be very difficult.
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