History of intestinal parasites began before the era of dinosaurs

Parasitic way of life is very effective. Tapeworms are not squeamish and primitive vertebrates.Tapeworm eggs, found in the feces of shark that lived 270 million years ago, suggests that parasites assailed animals much earlier than previously thought.Tapeworms are clinging to the inner walls of the intestine of vertebrates, and reaching the age of maturity, lay eggs which are released to the outside world with waste master. The study of the early history of these parasites - not an easy task, because their fossils from the time of the dinosaurs, are extremely rare. Have to analyze the coprolites.Shark Read more [...]
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Birds use in the construction of the nest stubs to control insect pests

Urban birds can use cigarette butts to "smoke out" insect pests out of their nests, scientists have figured out the Mexican. It is known that birds use in the construction of nests plants containing substances that repel pests. Tobacco leaves also contain compounds that repel insects, especially parasitic mites.Environmental specialist at the National Autonomous University of Mexico Montserrat Suarez-Rodriguez and her colleagues decided to find out whether the city birds use against parasites in the form of tobacco and cigarette butts, the publication Nature News.The authors of the Read more [...]
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Etiology of malaria

Etiology (parasitology). Of malaria - the parasitic protozoa related to the type of Protozoa, class Sporozoa, detachment Haemosporidia, family PlasmodIIdae, genus Plasmodium. The man known for four species of malaria parasites: P. vivax - malaria pathogen three days (with two subspecies of P. vivax vivax and P. vivax hibernans with short and long incubation period), P. malariae - exciter four-day MA, P. falciparum - exciter Tropical M., P. ovale - a three-day MA agent type. In addition, it is established that the person is also susceptible to certain pathogens M. monkeys. The life cycle Read more [...]
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Fluke and flat worms

These parasites are found in the fresh waters of the slow tropical areas of America, Africa, Asia, Japan, the Philippines and other Pacific islands. In the salt waters of the fluke are not found. In case of contact with the fluke penetrates through the skin or through the swarming of the water used for drinking or bathing. They feed on red blood cells and lay eggs in the cells of the blood or intestines. Purely wash it will help you to avoid contact with these parasites. Read more [...]
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Parasites light

Typical lung parasites are measled stage tapeworm Echinococcus (see Echinococcosis) and Raragonimus westermani (see lung fluke disease), Paragonimus ringeri and P. pulmonalis. Scattered foci of lung fluke disease in East and South Asia. Infection occurs by eating in the form of half-baked freshwater crabs and crayfish, sometimes by drinking unboiled water, which are the larvae of the parasite that go out after the death of invasive crustaceans and preserving the ability for 25 days. Diagnosis is based on parasite eggs in sputum or feces. Lungs are also a step in the migration path of the larvae Read more [...]
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The simplest

The simplest (Protozoa) - type of single-celled animals, which includes more than 25,000 species. Most protozoa are free-living, living in the seas and oceans (in the water column and at the bottom) as well as in fresh water and soil. More than 6,700 species of protozoa are parasites of man and various animals and plants. Some cause serious diseases - malaria (see), amebiasis (see), trichomoniasis (see), leishmaniasis (see), toxoplasmosis (see), giardiasis (see), balantidiasis (see), pneumocystis (qv) and others, and the animals - piroplasmosis, babeziellezy, coccidiosis, trichomoniasis, toxoplasmosis, Read more [...]
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Malaria in animals

Malaria animals - vertebrates disease caused by various types of parasitic protozoa of the genus Plasmodium, numbering over 60 species. Malaria parasites of birds and mammals carry different mosquito species belonging to the genera Aedes, Culex, Mansonia, Anopheles and other vectors of pathogens M. amphibians and reptiles are not known. Malaria parasites in birds discovered and described V. Danilevsky in Kharkov in 1885-1896 gg. Later, they were studied by many scholars at home and abroad. In 1898, Koch (W. Koch) found M. pathogens in monkeys. Vinkke and Lina (J. H. Vincke, M. Lips, 1948) found Read more [...]
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Parasites - organisms that feed at the expense of other organisms (hosts) and harming them. Parasites of the place of residence to their hosts are divided into external (ectoparasites) and internal (endoparasites). Ticks can be either permanent (eg, lice), and time-flea (see), bugs (see), mosquitoes (see) and others Endoparasites, living permanently in the host body, may be in almost all its tissues or organs. Many parasites are often doing a complicated life cycle, consistently changing owners. Changing the latter is connected with the changing conditions of power during metamorphosis (mites) Read more [...]
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The diagnosis of malaria

The diagnosis of malaria  set on the basis of characteristic clinical symptoms, epidemiological history, and, most importantly, the detection of parasites in the blood. When questioning is to find out whether the person is in the present or previous epidemic season in a place where it is possible malaria. The undisputed evidence is the detection of malaria parasites in the blood of Moscow. The simplest and most reliable way - Microscopy thick drops of blood stained with azure-eosin Romanovsky - Giemsa (see Blood, research methods). With the fresh disease M. in the first days of parasitemia Read more [...]
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Lice (pediculosis)

On human parasites three types of lice: head, body and pubic. Head Lice characterized by dark spots on the sides of the body, they are brownish blacks, are yellow people with yellow skin, the white - greyish. Headache louse parasitic on hair mostly in children, untidy women, rarely on the beard and scalp in men. Female within two months could delay 8000 nits, which are tightly attached to the hair with a chitin substance. Lice bites cause her constant intense itching. From scratching, excoriations and secondary infection connections formed pustular rash, sometimes soak and abscesses. Depending Read more [...]
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Helminths (worms synonym) - parasitic Worms, parasitic disease pathogens (helminths) of humans, animals and plants. Helminths relate to the following four types: 1) flatworms (Plathelminthes), represented by two classes of parasites - trematodes or flukes, and cestodes or tapeworms. In Russia of human trematodes more common opistorhisov of cestodes - broad tapeworm, bovine, porcine and dwarf chain, tapeworm larvae and alveococcus 2) roundworms, or nematodes (Nemathelminthes), - roundworm, whipworm, pinworm, Ancylostoma, Trichinella, etc . 3) parasites or kolyuchegolovye Worms (Acanthocephales); Read more [...]
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