Figure 1From: The clinical and public health problem of relapse despite primaquine therapy: case review of repeated relapses of Plasmodium vivax acquired in Papua New Guinea Photomicrograph of an oil-immersion microscopic examination of a Giemsa-stained thin blood smear taken from the patient illustrating amoeboid trophozoites within enlarged and mutable infected red blood cells consistent with a diagnosis of infection by Plasmodium vivax . Back to article page