IgA is the most abundant isotype antibody in the intestinal mucosa, where it provides a first line of immune protection against commensal, ingested and sexually transmitted agents. IgA uses a ...

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BOUDICA:I am Boudica, Queen of the Iceni. When my husband died he left his kingdom both to me and the Roman Emperor Nero, to share. It was meant to keep the peace between us. NARRATOR:It is 60 AD; the ...