Helminth infections is a major cause of morbidity in all age groups in developing countries. More than one-quarter of the world's population is infected with the parasite. In developed countries, the distribution of the worms much less, this is due to better hygiene and food safety.
The eggs of the worms may be present in food, water, air, feces, in the wild and domestic animals, as well as topics such as toilet seat and door handle. Enter the body through the mouth, nose or anus. After contact with eggs in the intestine they hatch into larvae that grow and multiply. Some worms are small, not visible to the naked eye, while others grow huge. If the size of helminth small, that you can easily fall into the bloodstream and spread throughout the body in search of a place suitable for growth and reproduction.
Worms in people, they become the cause of damages and the destruction of the tissues of the host agency. Develop their own toxic substances, which can cause a number of undesirable and serious health problems. Human worms can be the cause of many problems, including diarrhea, fatigue, skin rash, nervousness, asthma and anemia. Worms of the man can be extracted from the survey and inspection of the patient, laboratory analysis of creek, and sometimes tests, and other tests.
There are more than 340 species of worms. Most of them are rarely found in people, but can infect the animals that are the reservoir of infection.
All the worms can be divided into three classes:
Adults have elongated, segmented form, they live in the intestinal lumen. Tapeworms are receiving the oxygen and nutrients directly through the epidermis. Are not marginalised from the systems of digestion or the circulation of the blood. Tapeworms may have different sizes, from microscopic to several meters in length. The most common representative of this class of helminths in people is the solo.
Trematody received its name from the fact that they have, as a minimum, an external suction, which are used to tie to his master. Adults have the shape of a leaf. The speakers cavities of the mouth and the sucker ventral help parasites keep it in place. Can live in various organs, such as the small intestine, the bladder, the colon, the liver, the spleen, the lungs and the veins. This class of helminths is more common in tropical countries. These include the fluke of liver etc
The most common types of round worm is ostritsy, ascaride, Trichinella, etc., have a hollow body and holes at their ends. These worms are often found in domestic animals, which can infect humans. Often the infection of round worms occurs with contaminated food or pets.
Different people have different symptoms of the presence of parasites, depending on what the worms in your body. The symptoms on the part of the digestive tract:
System of signs:
Sometimes the human immune system receives a small damage of the worms. But in some cases, the damage can be much more serious, helminths can even kill his master. In addition, helminths consume nutrients from the body of his master, are distinguished in it the products of its life on the exchange. This can damage the tissues and organs of the master, to weaken its defenses and the immune system.
To reduce the chances of infection in the worms, follow the following tips.