Plasmodium ovale wallikeri

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Plasmodium ovale wallikeri
Plasmodium ovale 01.png
Plasmodium ovale trophozoite, Giemsa stain.
Scientific classification
(unranked): SAR
(unranked): Alveolata
Phylum: Apicomplexa
Class: Aconoidasida
Order: Haemosporida
Family: Plasmodiidae
Genus: Plasmodium
Species: P. ovale
Subspecies: P. o. wallikeri
Trinomial name
Plasmodium ovale wallikeri

Plasmodium ovale wallikeri is a subspecies of parasitic protozoa that causes tertian malaria in humans. It was described in 2010 when it was realised that Plasmodium ovale was in fact two distinct species - Plasmodium ovale curtisi and Plasmodium ovale wallikeri - which are morphologically identical.[1]


Both P. ovale subspecies have been identified in Ghana, Myanmar, Nigeria, São Tomé, Sierra Leone and Uganda.

Clinical features[edit]

Since this species has only recently been identified clinical features are described in the page on Plasmodium ovale.


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


  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&ndash, 50. doi:10.1086/652240. PMID 20380562.