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Plasmodium malariae is a parasitic protozoan that causes malaria in humans. It is one of several species of Plasmodium parasites that infect other organisms as pathogens, also including Plasmodium falciparum and Plasmodium vivax, responsible for most malarial infection.
Major groups of parasites include protozoans (organisms having only one cell) and parasitic worms (helminths). Of these, protozoans, including cryptosporidium, microsporidia, and isospora, are most common in HIV-infected persons. Each of these parasites can infect the digestive tract, and sometimes two or more can cause infection at the same time.
Malaria is transmitted by the bite of an infected female mosquito. Symptoms of malaria include: periodic chills and fever, anemia, and hypertrophy of the liver and spleen. Cerebral malaria can occur in children. In order to diagnose Malaria, doctors will look for parasites in Wright-or-Giemsa-stained red blood cells and serological tests.
The liver infection causes no symptoms; all symptoms of malaria result from the infection of red blood cells. [48] Symptoms develop once there are more than around 100,000 parasites per milliliter of blood. [48]
Plasmodium vivax is a protozoal parasite and a human pathogen.This parasite is the most frequent and widely distributed cause of recurring malaria. [2] Although it is less virulent than Plasmodium falciparum, the deadliest of the five human malaria parasites, P. vivax malaria infections can lead to severe disease and death, often due to splenomegaly (a pathologically enlarged spleen).
The causative organism of malaria is a protozoan, Plasmodium falciparium, that is carried by the female Anopheles mosquito. [4] Malaria is recorded as the most common disease in Sub-Saharan Africa, and some Asian countries with the highest number of deaths. [5] Studies have shown the increased prevalence of this disease since 2015. [6]
Malaria causes symptoms that typically include fever and headache, which in severe cases can progress to coma or death. Five species of Plasmodium can infect and be transmitted by humans. The vast majority of deaths are caused by P. falciparum and P. vivax , while P. ovale , and P. malariae cause a generally milder form of malaria that is ...
A human pathogen is a pathogen (microbe or microorganism such as a virus, bacterium, prion, or fungus) that causes disease in humans.. The human physiological defense against common pathogens (such as Pneumocystis) is mainly the responsibility of the immune system with help by some of the body's normal microbiota.