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The Fermi Paradox: Where Are All the Aliens?
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random migration

immunology

Learn about this topic in these articles:

infectious diseases

  • Viral disease researchers Hilary Koprowski and Herald R. Cox
    In infectious disease: Natural and acquired immunity

    …chance, in a process called random migration, since almost every body site is supplied constantly with the blood in which these cells circulate. Additional granulocytes are attracted and directed to the sites of infection in a process called directed migration, or chemotaxis.

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