plasmodium schwetzi plasmodium schwetzi plasmodium schwetzi is a parasite of the genus plasmodium subgenus plasmodium. like all plasmodium species p. schwetzi has both vertebrate and insect hosts. the vertebrate hosts for this parasite are mammals. plasmodium schwetzi scientific classification kingdom: protista phylum: apicomplexa class: aconoidasida order: haemosporida family: plasmodiidae genus: plasmodium species: p. schwetzi binomial name plasmodium schwetzireichenow, 1920 description p. schwetzi was first described by reichenow in 1920 in blood apes in cameroon. the parasite resembles both plasmodium vivax and plasmodium ovale. geographical occurrence this species is found in cameroon. clinical features and host pathology this species may occasionally infect man. vectors anopheles balabacensis balabacensis