A patient has crescent- or banana-shaped malarial gametocytes. Which of the following is probably true regarding the species of malaria and its clinical course?
a. Plasmodium malariae, which is benign and needs no treatment
b. Plasmodium ovale, which is found mostly in Southern United States and is usually fatal
c. Plasmodium falciparum, which is the most clinically serious
d. Plasmodium vivax, which is the most clinically serious
ANS: C
Plasmodium falciparum has crescent- or banana-shaped gametocytes. This is the most clinically serious form of malaria.
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