Parasites in the human body

Parasites(Greek parasitos - parasite, parasite) - lower plant and animal organisms that live outside or inside another organism (host) and feed on it.

parasites in the human body

Parasitesarose in the process of historical development of organisms from free living forms.

Their adaptation to certain living conditions led to the simplification of their organization, the development of special fixation organs, the development of genital organs, and the development of anoxybiotic respiration, which allowed them to exist in an oxygen-free environment.

Many parasites include:

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

Hosts of parasites can be:

  • bacteria;
  • protozoa;
  • plants;
  • animals;
  • Man.

Parasites go through a complex development cycle: sometimes they require a change of 2-3 hosts, whose organism is intermediate (the helminth passes through the larval stage) or final (the helminth becomes sexually mature, invasive).

Classification of parasites

According to their distribution, parasites are divided into:

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

According to their biological and epidemiological characteristics, parasitosis is divided into the following:

  • Geohelminthoses- a disease in which parasites (helminths) first develop in the human body, and then in a non-living substrate, often in the soil.
  • BiohelminthosesIt is a disease in which the biological development period of the parasite (helminths) necessarily occurs in the body of living beings other than humans.There are final hosts in whose body helminths develop to the sexual maturity stage, as well as intermediate hosts in which the parasite is in the larval stage or reproduces asexually.People are often final hosts, less often intermediate hosts.
  • Contact with helminths- a disease in which parasites from the human body are mature or almost mature, resulting in possible infection or re-infection (autoinfection, reinvasion) to another person.

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

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

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

  • External parasites(mosquitoes, horseflies, leeches, lice).
  • Internal parasites(helminthiasis):
    • roundworms (nematodes - roundworms, filaria, whipworms, pinworms, strongyloides, hookworms, trichinella);
    • flatworms:
      • trematodes (flukes - cat fluke (opistorchid), clonorchid, fasciola, schistosome);
      • cestodes (tapeworms - beef and pork tapeworms, dwarf tapeworm, broad tapeworm, exinococcus).
  • Bacteriosis(leptospira, staphylococcus, streptococcus, shigella).
  • Protozoans or protozoans(amoeba, lamblia, trichomonas, often hosts of chlamydia and AIDS virus).
  • Mycoses(fungal diseases) - candida, cryptococci, penicillium.

How parasites enter the human body

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

Pinworm eggs shed from wool remain viable for up to 6 months and enter the alimentary tract through dust, toys, carpets, underwear, bedding and hands.

dogthrough moist breath, it spreads eggs up to 5 meters (a cat - up to 3 meters).

Fleadogs also carry worm eggs.Ascaris eggs enter the human body through poorly washed vegetables, fruits, berries, greens, dirty hands, and are also spread by flies.

And improperly prepared kebab or homemade fat is a way of infection with trichinosis;poorly salted fish, caviar or "stroganina" - opisthorchosis and tapeworm.

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

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

Adaptive features of parasites:

  • longevity (helminths live in the human body for years, and sometimes as long as the host of the parasite lives);
  • the ability to suppress or change the immune response of the host organism (a state of immune deficiency is created, conditions are created for the penetration of pathogenic agents from the outside, as well as "disinfection" of internal infection centers);
  • When many species of helminths enter the digestive system, they secrete anti-enzymes that save them from death;digestive process is disturbed, toxic-allergic reactions of various severity appear: urticaria, bronchial asthma, atopic dermatitis;
  • developmental stages (egg, larva, host change);
  • the ability of eggs to live in the external environment for years;
  • sexual reproduction, during which the exchange of genetic information takes place, and this is the highest stage of development, it leads to an increase in the heterogeneous population, which means that parasites become less susceptible;
  • 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 parasites

The diversity of helminths parasitizing the human body increases significantly due to the increased migration processes.Currently, 70 species of more than 260 existing parasites are common.There is an increasing trend of infections with enterobiosis, giardiasis, toxocarosis, opisthorchosis, diphyllobothriasis, tenidosis, and echinococcosis.Schistosomiasis and filariasis are widespread in Southeast Asian, African and Latin American countries.

"Healthy" people...Many people who lead a healthy lifestyle face health problems due to the presence of parasites in their body.Improving the health of the body without cleansing the body of parasites (proper nutrition, physical exercise, hardening procedures) obviously does not have a 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 vital organs: brain, heart, lungs, liver, kidneys.

The cause of many diseases

During their life, helminths secrete special substances - toxoids, which are strong poisons and allergens.Parasites (protozoa, fungi and helminths) that trigger many chronic diseases:

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

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

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

Parasitosis causes:

  • hypovitaminosis and depletion of trace elements: potassium, copper, manganese, selenium, zinc, magnesium, silicon;
  • hematopoietic disorders;
  • hormonal imbalance;
  • vascular permeability is disturbed;
  • The body's defense against cancer suffers.

How did you get saved before?For thousands of years, humans have been eating mainly plant-based foods, taking with them antimicrobial, anti-parasitic and antiviral natural active ingredients.Reducing the consumption of wild plants, fruits, berries, replacing them with cultivated vegetables and fruits, heat and industrial processing have led to a decrease in the consumption of natural phytoncides and antibiotics.As a result, humans have become easy prey for many microorganisms.The intensive development of the pharmaceutical industry that produces antibiotics has led to a decrease in antiparasitic immunity.

Traditional medicine to eliminate parasites in the human body

Medicinal synthetic anthelmintic drugs have pros and cons.There are three main negative factors:

  • often they affect only gastrointestinal forms of parasites;
  • very toxic to the human body;
  • it causes many negative reactions.

Science does not stop!All over the world, intensive scientific research is being done on the antibiotic properties of plants.In terms of effectiveness, they are not inferior to synthetic antibiotics, but they do not cause side effects typical of synthetic drugs.Medicinal components of plants are complex natural phytoncide complexes that can cleanse the human body of many parasites at different stages of their development.

Nature!This will help us!Herbal preparations are less toxic;if necessary, they can be assigned in long courses;they activate antiparasitic immunity and effectively suppress the life activity and reproduction of parasites in the human body.

Parasites are widespread diseases that have a toxic and harmful effect on the human body.Since treatment with chemical preparations has a negative effect on the body, the optimal solution to the problem of fighting parasitosis is herbal products.