Many parasites, such as those that cause malaria, use antigenic variation to decrease virulence within a specific host.

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Antigenic variation is a strategy used by parasites, including those that cause malaria, to evade the host's immune response, not to decrease virulence. This mechanism allows the parasite to persist within the host by changing the proteins on its surface, thereby avoiding detection and destruction by the host's immune system.

Many Parasites, Such as Those That Cause Malaria, Use Antigenic