Types of worms in the human body.

Various organisms can inhabit the human body. Those that, due to their vital activity, damage human health, are called parasites. Parasites in the human body are not necessarily worms, they can also be other living organisms that cause harm to humans. Dangerous parasites can inhabit the entire territory of the earth. So what are parasites and how do they affect humans?

Types of parasites

There are more than 2000 representatives of the types of parasites in the human body. They are divided according to their type, mode of existence, methods of reproduction. There are also obligate and facultative parasites.

Obligate parasites can only live in the host's body. Obligate intracellular parasites are completely dependent on their host, so they do not seriously damage it.

Optional can live part of its life cycle as free life, the other part can be kept in the host body. All of them can affect various internal organs and tissues. Some of them exist for a long time and at the same time they do not manifest themselves in any way. The appearance of others is accompanied by characteristic symptoms.

Helminthiasis

Human helminthiasis is caused by various worms. At the moment, there are more than 300 types of helminths in humans. It is found among worms, both mandatory and optional parasites. In addition, depending on the form of interaction of the parasite with the host organism, they are divided into two groups: ectoparasites and endoparasites. They belong to different classes and can parasitize on various organs. Worms in humans are one of the most common diseases; soil-transmitted helminth worms are found more frequently. The appearance of worms in humans can be provoked, not only with dirty hands. You can become infected through pets, livestock, fish, and dirty water. The disease depends on the types of worms that have entered the body. To understand what consequences worms can cause, you need to find out what worms are. By knowing what worms can occur and their characteristics, you can protect yourself from infection.

• Roundworms. Most worms in this class are parasites. The main differences of this class are: a dioecious cavity, an existing anus, the presence of a primary body cavity. The most common types of helminths in humans are roundworms, pinworms, trichinella, and whipworms. Roundworms are soil-transmitted helminths, that is, a temporary host is not required for their maturation and reproduction. All its vital activity can occur within an organism. Some soil-transmitted helminths in domestic animals can become dangerous to humans, for example, toxocara worms.
• Tapeworms are parasites of the human body that live mainly in the intestines. There are two groups of tapeworms: biohelminths and soil-transmitted helminths. Most of the worms of this species are biohelminths. For their development, they need to enter the body of an intermediate host, which is cattle, as well as fish and mollusks. The most common tapeworms in this group include the bovine tapeworm, broad tapeworm, echinococcus, and alveococcus. Tapeworms can grow to a large size, parasitizing the human body. The longest worm: the broad tapeworm can reach 25 meters in length.
• Pacifiers. One of the most complex organisms that a person can live. All of these parasites can infect various organs. Any type of worm of this type causes trematodes. The trematode, the liver trematode, the lanceolate trematode, are the trematodes.
• Scratchers or spiny-headed worms are among the smallest tapeworms. These types of parasites are quite rare in the human body. You can get them from sick fish. They parasite only in the intestines, since they do not have a digestive system. Also in the human body there are such representatives as giant scrapers.

Protists

Protists are the simplest organisms. They belong to a heterogeneous group of living organisms. Protists cannot be classified as animals or fungi. Protists are single-celled, colonial, and less commonly multicellular organisms. Some of them can parasitize on the human body. The most dangerous protists are the malarial plasmodia and the amoeba dysentery. Parasites can cause diseases like malaria, dysentery. Several types cause serious pathologies in humans. And if they are identified, you should consult a doctor.

Entomosis

Various insects, especially those that live in tropical countries, cause entomoses. Entomosis causes various pathological changes in human organs. Most often, the eyes, skin, and gastrointestinal tract system are affected. A variety of insects can cause entomoses:

• Mosquitoes, fleas, and insects - infect through unprotected areas of human skin.
• horseflies and flies: infect humans and lay their young in the form of eggs or larvae in skin wounds. You can also become infected with some types of flies by swallowing their larvae.

All insects that parasitize the human body have the ability to release toxic substances. Depending on the pathogen, the clinical picture appears. Insects can have an allergic and mechanical effect on humans.

TOP - The 7 most common parasites

Parasites that live in the human body can cause serious diseases. We offer the top 7 of the scariest and most terrible parasites that can inhabit the human body. From the list you can find out which parasites live in different countries and how dangerous they are.

1. Filaria.A long, slender worm found in tropical and subtropical areas. The parasite is carried by mosquitoes. Filariae cause a disease as terrible as elephantiasis. In countries where the parasite is found, more than 120 million people suffer from elephantiasis. Filariae, which parasitize the body, clog the lymphatic vessels. After that, the person begins a strong growth of the limbs.
2. Anisakids.Anisakid larvae have long been considered harmless. But in the mid-20th century, scientists discovered that anisakidosis disease can even lead to death in some cases. You can become infected with parasites from poorly thermally processed shellfish, including fish. Anisakids are one of the most terrible parasites of human beings. Anisakid larvae that enter the stomach cause the formation of tumors and the development of ulcers.
3. One of the most famous parasites is thebovine tapeworm.Having been infected with a worm through dirty hands or raw meat, a person may not know about the disease for a long time. The soil-transmitted helminths of this species cause a great loss of weight. In its size, being inside the owner, it can reach several meters. Sometimes they live in the body for many years, without manifesting at all.
4. Schistosoma.With the development of tourism, this type of parasite began to expand its geography. Living in wild tropical forests, the schistosome parasite can enter the body by swimming in bodies of water. It can cause serious liver and bladder disease. Especially dangerous for children. In the child's body, the schistosome causes the development of anemia and can stunt growth.
5. Risht.It inhabits the subtropical regions of Asia and Africa. Guinea worm, which causes the Guinea worm, is a dangerous disease. During the laying of the larvae by the female Rishta, it pierces the skin of the host. The person feels severe pain and itching. There is a great risk of getting guinea worm from drinking dirty water.
6. Parasites mainly affect the digestive tract, liver and skin. But there are species that live in the brain, such ascysticercus.They can live up to 30 years, causing mental disorders: hallucinations, depression, loss of short-term memory.
7. Toxoplasma.One of the most common helminths on earth. Toxoplasmosis is of two types: congenital and acquired. In the first case, the infection occurs in the uterus. Most of the time it causes serious pathologies and leads to fetal death. Acquired disease affects the central nervous system and can lead to brain cancer. Toxoplasma often causes the development of schizophrenia.