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antigenic variation

genetics

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occurrence in trypanosomes

  • Noctiluca scintillans
    In protozoan: Protozoans and disease

    …alternate forms are known as antigenic variants, and it has been estimated that each species may have as many as 100 to 1,000 such variants. The host must produce a new set of antibodies against each new variant, and in the meantime the parasite has time to replenish its numbers.…

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