Parasites in the human body

Parasites(from the Greek parasitos - parasite, parasite) - lower plant and animal organisms that live outside or inside other organisms (the host) and feed at its expense.

parasites in the human body

Parasitesarise in the process of the historical development of organisms from independent living forms.

Their adaptation to certain living conditions requires the simplification of their organization, the development of special fixation organs, increased development of genital organs, and anoxybiotic respiration, which makes it possible to exist in an oxygen-free environment.

Many parasites include:

  • helminths;
  • fungi;
  • viruses;
  • protozoa;
  • worms;
  • crustaceans;
  • arachnids;
  • insects.

Parasitic hosts can:

  • bacteria;
  • protozoa;
  • plants;
  • animals;
  • Humans.

Parasites go through a complex development cycle: sometimes they need to change 2-3 hosts, whose organisms are intermediate (helminth through the larval stage) or final (helminth becomes sexually mature, invasive).

Classification of parasites

According to its distribution, parasites are divided into:

  • Everywhere- found everywhere.
  • Tropical- common in tropical climate zones.

According to biological and epidemiological characteristics, parasitoses are divided into:

  • Geohelminthiasis- a disease in which parasites (helminths) first develop in the human body, and then on an inanimate substrate, often in the soil.
  • Biohelminthiasisis a disease in which the biological development cycle of the parasite (helminth) necessarily occurs in the body of living beings other than humans.There is a final host, in whose body the helminth develops to a sexually mature stage, as well as an intermediate host, in which the parasite is in the larval stage or reproduces asexually.Humans are often final hosts, less often intermediate hosts.
  • Contact helminthiases- a disease in which the parasite is released from the mature or nearly mature human body, as a result of which it is possible to infect another person or re-infect him (autoinfestation, reinvasion).

Depending on the location of the parasite in the human body:

  • Luminal parasites- live in the intestinal cavity and other cavities of the human body (for example, roundworms, tapeworms).
  • Tissue parasites- live in the tissues of the human body (schistomatosis, echinococcosis).

According to the place of residence of the owner (person):

  • External parasites(mosquitoes, horseflies, leeches, fleas).
  • Internal parasites(helminthiasis):
    • roundworms (nematodes - roundworms, filaria, whipworms, pinworms, strongyloides, hookworms, trichinella);
    • flatworms:
      • trematodes (flukes - cat fluke (opisthorchid), clonorchid, fasciola, schistosome);
      • cestodes (tapeworms - cattle and pig tapeworms, dwarf tapeworms, broad tapeworms, echinococcus).
  • Bacteriosis(leptospira, staphylococcus, streptococcus, shigella).
  • Protozoa or protozoa(amoeba, lamblia, trichomonas, often hosts chlamydia and the AIDS virus).
  • Mycoses(fungal diseases) - candida, cryptococcus, penicillium.

How parasites enter the human body

You can get infected with parasitosis not only through dirty hands.Animal fur is a carrier of worm eggs (ascaris and toxocara), Giardia.

Pinworm eggs that fall from fur remain viable for up to 6 months and enter the alimentary canal through dust, toys, carpets, underwear, bedding and hands.

dogthrough moist breath, it spreads eggs at a distance of up to 5 meters (cats - up to 3 meters).

Licedogs also carry worm eggs.Ascaris eggs enter the human body through vegetables, fruits, berries, herbs, dirty hands, and are also spread by flies.

And improperly prepared kebabs or homemade lard is a path of infection with trichinosis;less salty fish, caviar or "stroganina" - opisthorchiasis and tapeworms.

Therefore, there are several ways that parasites enter the human body:

  • nutrition(through contaminated food, water, dirty hands);
  • contact-household(through household items, from infected family members, pets);
  • delivery(through blood-sucking insects);
  • percutaneous,or active (where larvae penetrate the skin or mucous membranes into the human body during contact with contaminated soil, when swimming in open water).

Adaptive features of parasites:

  • long lifespan (helminths live in the human body for many years, and sometimes as long as the owner of the parasite lives);
  • the ability to suppress or modify the immune response of the host organism (a state of immune deficiency arises, conditions are created for the penetration of pathogenic agents from the outside, as well as for "disinhibition" of the internal focus of infection);
  • Many types of helminths, when entering the digestive tract, secrete anti-enzymes, which save them from death;the digestive process is disturbed, toxic-allergic reactions of varying severity appear: urticaria, bronchial asthma, atopic dermatitis;
  • developmental stage (egg, larva, host change);
  • the ability of eggs to survive for years in the external environment;
  • sexual reproduction, where the exchange of genetic information takes place, and this is the highest stage of development, which leads to an increase in heterogeneous populations, that is, parasites become less vulnerable;
  • lack of immunoprophylaxis methods, because the immune response is weak and unstable;
  • wide distribution of helminths, many habitats (water, soil, air, plants and animals).

Epidemiology of parasitosis

Due to the increased migration process, the diversity of helminths parasitizing the human body has increased significantly.Currently, 70 parasite species are common out of more than 260 that exist.There is a tendency to increase infections with enterobiasis, giardiasis, toxocariasis, opisthorchiasis, diphyllobothriasis, tenidosis, and echinococcosis.In the countries of Southeast Asia, Africa and Latin America, schistosomiasis and filariasis are common.

A "healthy" person...Many people who lead a healthy lifestyle experience health problems due to the presence of parasites in the body.Improving the health of the body (proper nutrition, physical exercise, hardening procedures) without ridding the body of parasites does not give a significant positive effect.

They are everywhere...According to the World Health Organization (WHO), helminths, and other types of parasites, are localized not only in the gastrointestinal tract, but also in important organs: brain, heart, lungs, liver, kidneys.

The cause of many diseases

In the course of their life, helminths secrete a special substance - toxoid, which is a strong poison and allergen.It is parasitosis (protozoa, fungi and helminths) that is the trigger for many chronic diseases:

  • cholecystitis;
  • cholelithiasis;
  • pancreatitis;
  • colitis;
  • diabetes mellitus;
  • bronchial asthma;
  • atopic dermatitis.

Chronic fatigue, irritability and anxiety, hyperactivity in children, anemia, brittle nails and hair, problematic skin, headaches, appetite disturbances, decreased immunity - these may be signals of current parasitosis.

If not treated...When parasites remain in the human body for a long time, the immune system suffers greatly.In the process of constant struggle with foreign antibodies, it comes to exhaustion, that is, to the development of secondary immunodeficiency.

Parasitosis leads to:

  • to hypovitaminosis and lack of trace elements: potassium, copper, manganese, selenium, zinc, magnesium, silicon;
  • to hematopoietic disorders;
  • hormonal imbalance;
  • impaired vascular permeability;
  • The body's anti-cancer defenses suffer.

How were you saved before?For thousands of years, people, eating mainly plant foods, received with them antimicrobial, antiparasitic and antiviral natural active substances.Reducing the use of wild plants, fruits, berries, replacing them with cultivated vegetables and fruits, thermal and industrial processing has led to a reduction in the use of natural phytoncides and antibiotics.As a result, humans become easy prey for many microorganisms.The intensive development of the drug industry that produces antibiotics has caused a decrease in antiparasitic immunity.

Traditional medicine to eliminate parasites in the human body

Medical synthetic anthelmintic drugs have advantages and disadvantages.There are three main negative factors:

  • often it affects only the gastrointestinal form of the parasite;
  • very toxic to the human body;
  • cause many adverse reactions.

Science does not stand still!Intensive scientific research on the antibiotic properties of plants is being carried out all over the world.In terms of effectiveness, they are not inferior to synthetic antibiotics, but do not cause side effects that are characteristic of synthesized drugs.The healing component of the plant is a complex natural phytoncidal complex that can rid the human body of many parasites at various stages of their development.

nature!This is what will help us!Preparations of plant origin are more or less toxic;if necessary, they can be prescribed in a long course;it activates antiparasitic immunity and effectively blocks the vital activity and reproduction of parasites in the human body.

Parasitoses are widespread diseases with toxic and destructive effects on the human body.Since treatment with chemical drugs has a negative effect on the body, the optimal solution to the problem of combating parasitosis is herbal products.