Plasmodium ovale

Plasmodium ovale is a parasite species that causes malaria in humans. It is one of several species of Plasmodium which cause malaria in humans. The others are Plasmodium falciparum, Plasmodium malariae, and Plasmodium vivax. P. ovale has a worldwide distribution, although it is a less common cause of malaria than the other species.

Life Cycle

The life cycle of P. ovale is similar to that of the other human malaria parasites. The parasite is transmitted to humans by the bite of an infected Anopheles mosquito. The parasites then invade the liver cells, where they multiply and form schizonts. The schizonts rupture, releasing merozoites which invade the red blood cells. In the red blood cells, the parasites multiply again, forming new schizonts that rupture and release more merozoites.

Clinical Features

The symptoms of P. ovale malaria are similar to those of other types of malaria. They include fever, chills, sweats, headache, nausea, and body aches. The disease can be severe in people with no previous immunity, particularly if it is not treated promptly.

Diagnosis and Treatment

Diagnosis of P. ovale malaria is made by examining a blood smear under a microscope. The parasites can be seen in the red blood cells. Treatment is with antimalarial drugs, including chloroquine and primaquine.

Prevention

Prevention of P. ovale malaria involves avoiding mosquito bites in areas where the disease is endemic. This can be achieved by using insect repellent, wearing long sleeves and trousers, and sleeping under a mosquito net. In addition, antimalarial prophylaxis can be taken.

See Also

• Malaria
• Plasmodium
• Anopheles