10 small enemies eat on human bodies

Hookworms, scabies, roundworms, pinworms, tapeworms . are parasites that cause people many unpleasant, annoying, even life-threatening diseases.

In natural biological processes, the symbiotic relationship between a parasite and the client can have beneficial effects, even changing people's personality and evolution.

However, the negative side of this relationship is often much larger than their positive. New Scientist magazine has listed some of the most common human parasites and the injuries they can cause to health.

Here are 10 hateful creatures eating on human bodies:

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Necator americanus: This parasitic nematode is transmitted into the human body through contaminated water, or fruits and vegetables. Hookworm larvae grow inside the human intestines, where they often stick to the intestinal wall and drink blood. Sometimes hookworms cause a form of anemia called anchylostomiasis. Symptoms of hookworm infection: weakness, abdominal pain, nausea, diarrhea, anemia.

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Scabies (Sarcoptes scabiei var. Hominis): Commonly known as a tick that causes itchiness in humans, the parasite is transmitted through skin contact. Scabies spawns their eggs on human skin, causing intense inflammation and itching. Symptoms of scabies: itching, pain, small pimples, skin irritation.

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Ascaris (Ascaris lumbricoides): With a length of 15-35 cm, this is the largest size of the parasitic nematode in human intestinal tract. The eggs hatch and quickly invade the intestinal wall, where the larvae suck blood to grow. Since then, roundworms can get into the lungs, where they cause coughs and can be swallowed back into the intestines. Symptoms of roundworm infection: fever, fatigue, rash allergy, vomiting, diarrhea, nervous instability, coughing and wheezing.

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Blood flukes (Schistosoma mansoni, S. haematobium, S. japonicum): They are small flukes living in the client's blood and causing worm infection. Living in water, blood flukes pierce the victim's skin when they come into contact with contaminated water. They leaves the cause of parasitic inflammation (swelling) and damage to internal organs, especially the liver. Adult flukes are still capable of surviving their host for decades, and may not cause any symptoms for years. They leave the client through the stool and and may experience part of the life cycle in the snail's body. Symptoms of blood fluke infection: fever, pain, cough, diarrhea, swollen lymph nodes, dizziness.

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Tapeworm (Taenia solium): Transmitted through food, tapeworm larvae attach to the victim's intestine with a hook on their head. After 3-4 months, they mature with reproductive organs and can survive for up to 25 years in the human body. Their eggs are excreted in the feces and can survive on vegetation, where they are consumed by cows or pigs and have the opportunity to pass on to humans. Symptoms of tapeworm infection: nausea, vomiting, eye inflammation, severe diarrhea, dizziness, edema, malnutrition.

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Pinworm (Enterobius vermicularis): About 8-13 mm long, pinworms are a common parasite, causing pinworm disease in humans. They nest in the gut of the client. Unlike many other parasites, they cannot penetrate into the bloodstream and cannot survive in other parts of the body even for a short time. They lay eggs outside the human body, usually around the anus, causing itching: this helps to carry the larvae spread through human hands. Symptoms of pinworm infection: itching in the anus.

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Only worms (Wuchereria bancrofti): Larvae of this parasite exist in the mosquito's body, infecting humans when the mosquito bites. These larvae migrate to lymph nodes, mainly in the legs and genital area, and mature in about a year. They often cause tropical filariasis, but in limited cases can cause skin disease. Symptoms of filariasis: fever, chills, skin infections, painful lymph nodes, skin, swelling.

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Parasites Toxoplasma gondii: This crescent-shaped parasite often enters the central nervous system of humans. People are infected by eating undercooked meat or by contacting infected cat feces. Most people have been exposed to this parasite once and produced antibodies that are immune to it. But some individuals with weak immune systems and the whole fetus can be seriously affected by death . Infection symptoms: flu, fever, chills, fatigue, headache.

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Giardia lamblia: Giardia lamblia is a single-celled parasite, parasitic in the human intestinal tract. When inhabiting the human intestines, they cause inflammation and damage, reducing the intestinal absorption of nutrients and diarrhea. Being able to survive after strict water treatment, this parasite usually exists in drinking water. Symptoms: diarrhea, nausea, abdominal pain, weight loss, burping of 'rotten eggs'.

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Entamoeba histolytica: This single-celled organism causes an infection of amoebiasis called amoebiasis. Found in water, humid environments and in soil and can contaminate fruits and vegetables, this worm is primarily transmitted by faecal contamination in humans and other primates. They are more likely to cause death than any other single-celled bacterium. Symptoms of infection: abdominal pain, weight loss, weakness, diarrhea, liver abscess.

Suggestions : biology, parasite, hookworm, scabies, roundworm, pinworm, wireworm, flagellum