| Intestinal Parasite |
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They are larger than Bacteria and Virus es but usually so small that you cannot see them without a Microscope . Three major groups of parasites include Protozoan s (organisms having only one cell), Nematode s (roundworms), and Cestodes (tapeworms). Of these, protozoans, including Cryptosporidium , Microsporidia , and Isospora , are most common in HIV -infected persons. Each of these parasites can infect the digestive tract, and sometimes two or more can cause infection at the same time. HOW DO PEOPLE BECOME INFECTED? Parasites can get into the intestine through the mouth from uncooked or unwashed Food , contaminated Water , or hands, or by Skin contact with Larva infected Soil . People can also become infected with intestinal parasites if they have mouth contact with the Genital or Rectal area of a Sexual partner who is infected (e.g. Oral Sex or '' Rimming ''). When the organisms are Swallowed , they move into the intestine, where they can reproduce and cause disease. WHAT ARE THE SIGNS OF INTESTINAL PARASITE INFECTION? In some People , intestinal parasites do not cause any symptoms, or the symptoms may come and go. Common signs and complaints include Cough ing, Cramp ing abdominal pain, bloating, " Gas " and Diarrhea . In more serious infections, Weight loss, fever, Nausea , Vomit ing, or Blood y Stools may occur. Some parasites also cause low red blood count ( Anemia ), and some travel from the Lung s to the intestine, or from the intestine to the Lungs and other parts of The Body . Many conditions besides Intestinal parasite infection can result in these symptoms, so laboratory tests are necessary to determine their cause. Intestinal parasites can infect anybody. However, HIV -infected persons may not be able to control parasite infection very well if they have advanced disease. Under these circumstances, intestinal parasite infection may become a long term health problem. SEE ALSO
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