QUESTION: Does all malaria kill without treatment? ANSWER: No. There are five main species of malaria which infect humans: Plasmodium falciparum, P. vivax, P. ovale, P. malariae and P. knowlesi. Of these, P. falciparum is the most deadly, and can often cause death if left untreated. The other four may also result in death, but more rarely, and usually only in high risk individuals, … [Read more...]