Parasitic protozoa of the human — types, and those caused by diseases

For the millions of years that have passed since the appearance of the first living organism, the majority of the representatives more simple, almost have not changed. But they have learned well to adapt to the new environmental conditions and to find the path to survival. One of the uses of the existence of these bodies became in parasitism, even in the human body.

parasites

What is protozoa human parasites

The human body and the body of any larger animal, it is for parasitic life examples is a very attractive object. In addition to the more simple, human beings can live multicellular parasites (helminths).

The place of habitat of the species more simple it can be endogenous (lives in the interior of the human body) or exogenous. Sometimes, as it progresses, the parasites move through the body, the choice of the most appropriate for a particular stage of habitat development.

Microscopic in size, and the presence of the primitive structure to allow simple parasites success to survive and multiply in the most difficult conditions. For all the representatives of this type is characteristic of the structure, formed by a single cell, filled by the cytoplasm – cellular fluid, in that they go through all the processes of metabolism, with the participation of the organelles (structures that perform various functions for the maintenance of life)

The motion function can be performed designed for this flagellums, cilia. The main process (power) is done in several ways:

  • the ingestion of cells of the mouth;
  • the adjustment;
  • the absorption of the surface of the membranes.

The adverse conditions can be a signal for the formation of a cyst resistant to the impacts on the environment outside of shells. Are required most simple of human parasites to the transition from one master to another, and may keep a prisoner in the interior of the parasite up to several years.

the most simple parasite

Cyst of the breeding is characterized by the temporal fine shell required more simple for a short period of division.

Important! Protozoa human parasites are protozoan pathogens of the infections: giardiasis, trichomoniasis, sleeping sickness, amoebae dysentery, malaria, and other

Types of protozoan parasites

According to the method of reproduction and circulation, the character of the power divided in 4 major classes of protozoa human parasites.

Important! Primitive structure, the formation of a cyst, the simplest form of reproduction, microscopic in size – all these factors allow the simple parasites to penetrate the most protected of the fabric of the human body and in the absence of adverse effects to become the source of a number of serious and sometimes it is very difficult to be able to diagnose medical conditions.

What diseases are caused by protozoan parasites

The disease caused by protozoan parasites, are like.

Malaria

The main symptoms of attacks of fever, joint pain, vomiting, anemia, seizures. You can observe an increase of the spleen. Malaria is a recurring feature of the evolution of the disease, with periods of rest and exacerbation. Depending on the type of stimulant distinguish of the form: three days, four days, and tropical. The disease spread in the territory of africa and south asia. Over many centuries, as today, the main tool for the treatment remains the quinine is a drug made from the bark quinic tree. Despite the creation of synthetic analogues, the deaths of an infection occur in areas without access to modern health care.

Amoebiasis (dysenteric amoebiasis)

Is called the simple parasite – amoeba dysenteric of the class. The infection can cause intestinal(the development in the liver) in nature. After 7-10 days after infection the first symptoms appear: pain, abdominal pain, weakness, a little fever (+37,5⁰). Approximately 10% may appear very severe diarrhoea, with traces of blood and mucus. One out of every three infected develop a fever. Characteristic is the increased size of the liver and, in some cases, an abscess in the liver. If treatment is not started in time, prolonged diarrhea, becomes the cause of the dehydration, weakness, and exhaustion of the body of the patient. Outbreaks of diseases typical of the countries of hot weather.

Leishmaniasis

The disease is called parasite of the class of flagellates. The main symptoms of the skin and of the situation-cutaneous leishmaniasis – the defeat of the epidermis in the form of ulcers. The situation of the possible appearance of edema and of the deformation. If in the process involved the respiratory tract and, in some cases can be deadly. For visceral forms characterized by increased size of the liver and of the spleen, fever and anaemia. Endemic in 88 countries, mostly tropical and subtropical climate.

Trichomoniasis

type of parasite

The disease called Trichomonas – a parasite of the class of flagellates. The defeat is subjected to genitourinary disease. The main symptoms in women are itching, and burning, engorgement of the external genitalia, the presence of secretions with a bad smell, sometimes can cause discomfort in the sexual relations and urination. The men in most of the cases the disease is asymptomatic, they can sometimes be pain when urinating and discharge from the symptoms of prostatitis.

Balantidia

The causative agent is a parasite of the class of infusorios. A characteristic symptom is abdominal pain, diarrhea. In acute cases of the disease there may be elevation of temperature, the signs of the total of the poisoning. The infection can result and chronic character, with interspersed periods of remissions and exacerbations. When complicated cases it is possible to bowel perforation and peritonitis.

Toxoplasmosis

The disease is called parasite of the class of spore – Gondii. The typical symptoms of the disease are lesions in the eyes, the nervous system, the heart muscles, increased lymph nodes, liver and spleen. It flows mainly in a chronic form. Often the primary infection takes place very easily, under normal appearance of acute respiratory infections. After that, there is always the immunity, and further infection is not possible. The greatest danger to the fetus during pregnancy: if the child survives with severe injuries to the nervous system, the eyes.

The disease of the dream

The disease is called a simple parasite of the class of flagellates. Features of the first phase are fever, headache and joint. After 7 to 20 days arrive the second phase of the disease: the beginning of the breaches in the perception of the surrounding world, of the failures in the coordination of movements, stiffness, and sleep disorders. An outbreak of the disease are localized in certain regions of tropical africa, habitat is the main vector of infection – the tsetse fly.

Chagas Disease

toxoplasmosis

The causative agent is a parasite of the class of flagellates. Main symptoms are fever, increased lymph glands, headache, swelling at the site of the bite. In the first stage of the signs of the disease may be absent, and after 8-12 weeks, 30-40%) can start the development of the secondary symptoms: increase of the ventricles of the heart, the extension of the esophagus, increasing of colon. The second stage of the disease can last over 10 to 30 years after infection. The most wide spread of the infection has been received in the countries of Latin america.

Important! Most of the protozoan parasites enter the body of the person in case of breach of the basic rules of sanitation and personal hygiene.

The routes of transmission of

The penetration of any micro-organism in the interior of the human body can occur through the implementation through the epidermis or natural orifices. For the most are found in the environment of the protozoan parasites forms of transmission to human is limited to four of the most common:

  1. Distance-home. This path of infection is available, the simplest of the organisms in case of violation of the rules of sanitation and personal hygiene. Since most of the micro-organisms to pass from a body of a teacher in the body of another can form cysts and be in this state until the moment of impact on the environment, in other words – in the interior of the person. The infection can occur at any time: the use of strange objects of life (towel, bed linen, kitchen utensils), washing of dirty hands by the water (cistern), and others ;
  2. By fecal-oral route (giardiasis). In this case, the infection occurs when the exit of the parasite from the gut of the diarrhoeal or emetic of the masses. In case of breach of the rules of hygiene parasite enters the water, food, or in the hands of the new owner and penetrates into the interior of the body. The source of infection can also be a bad wash, and vegetables, to children in the dirty hands after playing in sand or with animals.
  3. Through infected products (toxoplasmosis). In the flesh of most animals, especially wild, can be found cysts of protozoan parasites, which with the lack of a thermal treatment to enter the body of the person. It is also possible to be infected through the milk products that have not passed a health check, and the raw fish without the sufficient heat treatment;
  4. The malaria, the sleeping sickness. The infection occurs through the transmission of the pathogen through the saliva of the medium through a bite. The disease is spread by infected insects directly in the perceptual body.

In addition to the main forms of infection, the infection can occur even, in several ways, which are much more rare:

  • Transplacental — in the penetration of the protozoan parasites from an infected mother through the placenta to the fetus;
  • Sexual — infection only occurs when the sexual contact.

The prevention of the

the prevention of the

The warning of the infection of parasites, which includes, mainly, the compliance with all rules of hygiene and sanitation. The elimination of the possibility of infection with the parasite can reach reasonable to take into account a series of recommendations:

  • Heat treatment of meat products, dairy and fish products to the extent sufficient (subject to the thermal regime of the technology). Special attention is focused on the products has not passed sanitary control;
  • Thorough washing of fruits, vegetables, berries and vegetables, preferably with boiling water. Faced with the impossibility of heat treatment, especially for the feeding of children, it is better to remove the shell;
  • Periodic medical survey, especially if there is a suspected infection by parasitic protozoa;
  • The commitment of a sexual partner regular and the rejection of the drug;
  • For the prevention of infection from the bites of the insects can apply specific measures: the use of the prepared medicated, the destruction of mosquitoes, mosquito nets and insect repellents, the deduction of transgenic mosquitoes (resistant to malaria), the creation of the vaccine.

Important! Of great importance in the prevention of any type of infection, including protozoa human parasites, play the resistance level of the body. Because if the cyst gets in adverse conditions, where insufficient power or the immune cells are constantly attacking external object, or a parasite or perish, or leave the body of his master.

There are a number of products that are natural immunostimulant (garlic, ginger, broccoli, carrot, green tea), that the balanced use can help the body to the invaluable help in improving the immunity.

In addition, some products have a negative impact on the growth and reproduction of the simplest, and, in particular, have established in the digestive tract: the porridge of rice and barley cereals, nuts, baked apples, oil, steamed vegetables. In the treatment of parasites, you should limit or even avoid foods that trigger fermentation processes: bread products and sugar.

Currently, the pharmaceutical industry offers many expensive medications. However, its effective implementation can be achieved only in combination with the interventions and the compliance of a specific diet on the composition of the that you can consult to a qualified technician.

We must not forget the popular media, proven by time and many generations. In the case of the combination of all the methods and techniques under the supervision of a doctor, the parasite remains very, very few possibilities.

23.08.2018