Plasmodium ovale wallikeri

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Plasmodium ovale wallikeri
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. wallikeri
Trinomial name
Plasmodium ovale wallikeri
Sutherland, et al. 2010

Plasmodium ovale wallikeri 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]


a-f)Giemsa-stained thin blood smears show different life-cycle stages of Plasmodium ovale wallikeri

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

Clinical features

Clinical features for P. ovale wallikeri are the same as Plasmodium ovale.


Plasmodium ovale wallikeri 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.