FIGURE 2-3 The life cycle of the malaria parasite. (Adapted from Hospital Practice, September 15, 1990, by permission of HP Publishing, New York)

is transmitted to humans by the sporozoite forms in the saliva of infected female mosquitoes of the genus Anopheles. Soon after entering the human host, the sporozoites invade liver cells, where during the next 5 to 15 days they develop into schizonts. Each schizont contains 10,000 to 30,000 “daughter” parasites called merozoites, which are released and invade the red blood cells. Once inside the red blood cells, each merozoite matures

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