It's estimated that more than 1 billion people in the world are infected with pinworms, and they're the most common type of worm that infects humans in North America. Children are most commonly infected. They're easily passed between people living in close quarters.
How common are intestinal worms?
It is estimated that around 80% of both adults and children have parasites in their gut. People can be infected with these parasites in a number of ways.
Do normal humans have worms?
Thanks in part to modern plumbing, people in the industrialized world have now lost almost all of their worms, with the exception of occasional pinworms in some children. Intestinal worms are properly called “helminths,” which most dictionaries will tell you are parasites.
How common are worms in humans in the US?
Americans may come into contact with them when traveling to certain countries. Pinworms are the most common roundworm infection in the United States. It affects 20 million to 42 million people, many of them children.
How common are worms and parasites in humans?
lumbricoides can infect over a billion, T. trichiura 795 million, and hookworms 740 million people (3). Other species of intestinal helminths are not widely prevalent. Intestinal helminths rarely cause death.
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