Plasmodium vivax

organism

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June 17, 2026

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Plasmodium vivax is one of five species of protozoan parasites that cause malaria in humans. It is the most widespread cause of malaria globally. This parasite is transmitted through the bite of infected female Anopheles mosquitoes.12

The parasite infects red blood cells, leading to symptoms like chills, fever, headache, and muscle aches, which typically occur in cycles every 48 hours. While P. vivax infections can cause relapses due to dormant stages in the liver, they are generally less deadly than those caused by Plasmodium falciparum. Treatment historically involved quinine, with newer drugs like chloroquine and artemisinin also used, though drug resistance is a growing concern.123

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malaria
The course of the disease
(single-celled) parasites: Plasmodium falciparum, P. vivax, P. ovale, P. malariae, and P. knowlesi. The most common worldwide is P. vivax. The deadliest is P. falciparum. In 2008 P. knowlesi, which was thought to infect primarily Old World monkeys and to occur only rarely in humans, was identified as a…
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(single-celled) parasites: Plasmodium falciparum, P. vivax, P. ovale, P. malariae, and P. knowlesi. The most common worldwide is P. vivax. The deadliest is P. falciparum. In 2008 P. knowlesi, which was thought to infect primarily Old World monkeys and to occur only rarely in humans, was identified as a…
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chloroquine
…strains of the malarial parasites Plasmodium vivax, P. ovale, and P. falciparum as well as certain parasitic worms and amoebas. It is also used in the treatment of inflammatory rheumatic diseases, such as lupus erythematosus and rheumatoid arthritis.
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…strains of the malarial parasites Plasmodium vivax, P. ovale, and P. falciparum as well as certain parasitic worms and amoebas. It is also used in the treatment of inflammatory rheumatic diseases, such as lupus erythematosus and rheumatoid arthritis.
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Plasmodium
Five species cause human malaria: P. vivax (producing the most widespread form), P. ovale (relatively uncommon), P. falciparum (producing the most severe symptoms), P. malariae, and P. knowlesi. There are several species that have been isolated from chimpanzees, including P. reichenowi and P. gaboni. P.
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Five species cause human malaria: P. vivax (producing the most widespread form), P. ovale (relatively uncommon), P. falciparum (producing the most severe symptoms), P. malariae, and P. knowlesi. There are several species that have been isolated from chimpanzees, including P. reichenowi and P. gaboni. P.
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