Plasmodium ovale curtisi

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Plasmodium ovale curtisi
Plasmodium ovale trophozoite, Giemsa stain.
Scientific classification e
Domain: Eukaryota
Clade: Diaphoretickes
Clade: SAR
Clade: Alveolata
Phylum: Apicomplexa
Class: Aconoidasida
Order: Haemospororida
Family: Plasmodiidae
Genus: Plasmodium
P. o. curtisi
Trinomial name
Plasmodium ovale curtisi
Sutherland et al., 2010

Plasmodium ovale curtisi is a subspecies of parasitic protozoa that causes tertian malaria in humans. The subspecies was described in 2010 when it was established that the two subspecies of Plasmodium ovale, while morphologically identical are genetically distinct.[1]


This species separated from its closest known relative, Plasmodium ovale wallikeri, between 1.0 and 3.5 million years ago.


The geographical distribution of P. ovale spp- (1)Plasmodium ovale curtisi[2]

Clinical features for P. ovale curtisi cause tertian fever which spikes approximately every 49 hours as newly replicated parasites erupt out of red blood cells. [3]


P. ovale curtisi has been identified in Ghana, Myanmar, Nigeria, São Tomé, Sierra Leone and Uganda.


  1. Sutherland CJ, Tanomsing N, Nolder D, Oguike M, Jennison C, Pukrittayakamee S, Dolecek C, Hien TT, do Rosário VE, Arez AP, Pinto J, Michon P, Escalante AA, Nosten F, Burke M, Lee R, Blaze M, Otto TD, Barnwell JW, Pain A, Williams J, White NJ, Day NP, Snounou G, Lockhart PJ, Chiodini PL, Imwong M, Polley SD (2010). "Two nonrecombining sympatric forms of the human malaria parasite Plasmodium ovale occur globally". J Infect Dis. 201 (10): 1544–50. doi:10.1086/652240. PMID 20380562.
  2. Mahittikorn, Aongart; Masangkay, Frederick Ramirez; Kotepui, Kwuntida Uthaisar; Milanez, Giovanni De Jesus; Kotepui, Manas (19 March 2021). "Comparison of Plasmodium ovale curtisi and Plasmodium ovale wallikeri infections by a meta-analysis approach". Scientific Reports. 11 (1). doi:10.1038/s41598-021-85398-w. Retrieved 10 October 2023.
  3. Collins WE, Jeffery GM (July 2005). "Plasmodium ovale: parasite and disease". Clinical Microbiology Reviews. 18 (3): 570–81. doi:10.1128/CMR.18.3.570-581.2005. PMC 1195966. PMID 16020691.