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The
focused on peptides. These are amino acid
that keep our immune system
. The scientists said peptides could provide "therapeutic
in infectious diseases and immune-compromised
". Peptides help to create defences against bacteria and halt their
. Dr Merbl said: "We discovered a novel mechanism of
that is allowing us to have a defence against bacterial
." She added: "It's happening throughout our body, in all the
, and generates a whole new class of
natural antibiotics."