Helminth infection is one of the major causes of morbidity in all age groups in developing countries. More than a quarter of the world's population is infected with parasites. In developed countries the spread of worms much less is associated with better hygiene and food safety.
Helminth eggs can be present in food, water, air, faeces, domestic and wild animals, as well as such subjects as toilet seats and door handles. They enter the body through the mouth, nose or anus. After getting eggs in the intestine they hatch, the larvae grow and multiply. Some worms look small they are not visible to the naked eye, while others grow huge. If the worms are small, they can easily enter the bloodstream and spread throughout the body in search of a suitable place for growth and reproduction.
Worms in humans are the cause of the damage and destruction of the tissues of the host organism. They produce their own toxic substances that can cause a number of unwanted and severe health problems. Human worms can cause many problems, including diarrhea, fatigue, skin rash, nervousness, asthma and anemia. Worms in humans can be revealed on the basis of the survey and examination of the patient, laboratory tests of stool, and sometimes other tests.
There are more than 340 species of helminths. Most of them are rare in humans, but can infect animals, which become the reservoir of infection.
All worms can be divided into three classes:
Adults have an elongated, segmented form, they reside in the intestinal lumen. Tapeworms get oxygen and nutrients right through the outer skin. They do not have separate systems of digestion or circulation. Tapeworms may have different sizes: from microscopic to several meters in length. The most common representative of this class of worms in humans is the tapeworm.
Trematodes got its name from the fact that I have at least one external suction Cup that they use to attach to the host. Adults have the form of a sheet. Speakers of the oral and ventral suckers help the parasite to remain in place. They can live in many different organs, including small intestine, bladder, rectum, liver, spleen, lungs and veins. This class of worms are most prevalent in tropical countries. These include the liver Fluke etc.
The most common types of round worms is pinworm, roundworm, Trichinella, etc They have a hollow body and holes at their ends. These worms are common in Pets, which can easily become infected and people. Most often, the infection occurs round worms from contaminated food or Pets.
People have different symptoms of parasites, depending on what are the worms in their body. Symptoms from the digestive tract:
Sometimes a person's immune system gets a slight injury from worms. But in some cases the damages may be much more serious worms can even kill its owner. In addition, the worms consume nutrients from the body of his master, they are still isolated in the products of their life sharing. This can damage the tissues and organs of the host, to weaken his defenses and the immune system.
To minimize your chances of infection with helminths, follow these tips.