Kantele Anu, Jokiranta Sakari
HUS/HYKS, Medisiininen tulosyksikkö, infektiosairauksien klinikka, HUS.
Duodecim. 2010;126(4):427-34.
Four species have been known to bring on human malaria, the most severe disease being caused by Plasmodium falciparum. In 2007, after returning from Malaysia, a Finnish tourist was found to be infected with a fifth Plasmodium species, P. knowlesi which usually infects macaques. Over the past few years, hundreds of human cases have been found in Malaysia. The clinical disease caused by P. knowlesi appears less severe than P. falciparum infection, but more severe than infection with other malaria-causing species. Diagnosis is based both on PCR and microscopy. P. knowlesi is currently. considered as the fifth species causing malaria in humans.
已知有四种疟原虫可引发人类疟疾，其中最严重的疾病是由恶性疟原虫引起的。2007年，一名芬兰游客从马来西亚回国后，被发现感染了第五种疟原虫——诺氏疟原虫，这种疟原虫通常感染猕猴。在过去几年里，马来西亚发现了数百例人类感染病例。诺氏疟原虫引起的临床疾病似乎不如恶性疟原虫感染严重，但比其他引起疟疾的疟原虫感染更严重。诊断基于聚合酶链反应（PCR）和显微镜检查。诺氏疟原虫目前被认为是引起人类疟疾的第五种疟原虫。
