On reaching their full size, the Trichinella worms may leave the intestines and live in other tissues, such as the muscles. Abdominal symptoms can appear 1–2 days after eating contaminated meat, and other symptoms can appear 2–8 weeks later. Symptoms include: nausea and vomiting.
How long does it take to develop worms?
It takes about four weeks from the time a dog or cat eats the eggs for an adult worm to mature in the animal's intestine and start laying eggs.
How long do intestinal worms take to grow?
Eggs that have been swallowed will hatch inside the intestine. After 2 weeks, the worms reach adult size and begin to reproduce, starting the cycle again.
How long can worms grow in humans?
Tapeworms embed their heads into the intestinal wall and remain there. From there, certain types of tapeworms can produce eggs that mature into larvae that migrate to other parts of the body. A tapeworm looks like a long, white ribbon. They can grow up to 80 feet long and live in a human for up to 30 years .
Can you have intestinal worms for years?
For most, it's a short stay, with the immune system evicting the worms in days or weeks and leaving no trace that the parasites were ever there. In a small percentage of people and other animals, though, the worms gain a permanent mouth-hold and can stick around the intestines for years.
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