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A merozoite is a stage in the life cycle of certain parasitic protozoans, specifically those in the genus Plasmodium, which cause malaria. These single-celled organisms infect red blood cells in mammals, birds, and reptiles.12

The life cycle involves the merozoite being released from liver cells into the bloodstream. Once in the blood, merozoites invade red blood cells, where they multiply. This multiplication and subsequent rupture of red blood cells lead to the periodic chills and fever characteristic of malaria. Some merozoites can develop into gametocytes, which are then transmitted to mosquitoes, continuing the parasite's life cycle.13

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