Plasmodium exist, and they produce malaria in many types of animals and birds, as well as people. Four species of Plasmodium infect humans: falciparum, vivax, malariae and ovale." > Plasmodium exist, and they produce malaria in many types of animals and birds, as well as people. Four species of Plasmodium infect humans: falciparum, vivax, malariae and ovale." /> Plasmodium exist, and they produce malaria in many types of animals and birds, as well as people. Four species of Plasmodium infect humans: falciparum, vivax, malariae and ovale." />