Protozoan parasites

Among the simplest organisms, there are many parasites of animals and humans. Below are the parasitic protozoa that cause the most serious and common diseases.

Dysentery amphibians

The amoeba of dysentery is similar to the common one, but it is smaller and has smaller and wider rhizomes. It enters the human digestive system through the mouth in the bladder stage. In the large intestine, the amoeba leaves the bladder and feeds on bacteria without harming humans. In the future, this simpler organism begins to invade the intestinal wall, feeding on red blood cells and becoming a parasite. Ulcers form in the intestines, destroying the human body. There is a disease of reward dysentery or reciprocity.

Mutual dysentery can enter the bloodstream and reach the liver. Here, too, the parasite leads to the formation of purulent ulcers.

Forming cysts, the amoebae leave the human body with raw food debris. Light cysts spread easily. If you do not wash your hands and food, you can become infected.

Plasmodium malaria

Plasmids are parasitic protozoa. Some types of plasmodia cause malaria in humans. The vector of malaria plasmodia is the malaria mosquito. During an insect bite, the plasmid enters the bloodstream of the host. Along with the blood, it reaches the liver, feeds there, grows and multiplies. After that, many plasmids re-enter the bloodstream and begin to parasitize the red blood cells, destroying them and releasing their waste, which poisons the host. A person develops a fever, suffers from anemia.

If a malaria patient is bitten again by an anopheles mosquito, the plasmodia will now be transmitted from person to mosquito. In the body of a mosquito, Plasmodium reproduces sexually.

Malaria is common in Africa. This is a very dangerous disease. Fight against malaria, including the destruction of malaria mosquitoes.


The genus Trypanosomes are parasitic protozoa with whips (related to eugenics). Their main host is a vertebrate and insects are usually carriers. Different representatives of trypanosomes cause different diseases in animals and humans. They mainly parasitize the blood and cerebrospinal fluid. The most famous and common disease caused by the type of trypanosomes is the disease of sleep.

The carrier of the sleeping sickness is the tsetse fly. This disease is typical of tropical Africa. Sleep sickness develops in two stages: the first few weeks a person suffers from fever and pain, after a month or more of drowsiness, sleep and coordination disorders, and a change in consciousness. The disease is easier to treat in the first stage.


Giardia is a genus of parasitic protozoa. Intestinal bulbs cause giardiasis in humans and animals, in which the parasite lives in the small intestine.

Lamplia - a genus of parasitic protozoa

A person becomes infected with giardiasis by eating unwashed foods that contain Giardia cysts. Coming out of the bladder, the bulbs stick to the intestines and feed on digested food.


Leishmania is another genus of parasitic protozoa. They cause leishmaniasis in humans and many other animals. The vectors are mosquitoes.

There are different types of leishmaniasis associated with damage to various tissues in the body. One of them is Pendinsky ulcer.


The granules parasitize many animals, such as worms, arthropods and fish. They cause coccidiosis diseases, which cause serious damage to livestock and fish farming.

The granules settle in the form of seeds containing parasitic cells.

The genus Toxoplasma belongs to coccidia. Their representatives cause as widespread a disease in humans as toxoplasmosis. A person is infected by pets or poorly cooked food. Toxoplasmas affect many organs, including the nervous system.