Gap Fill - Immune System - Level 5

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   cells      compounds      conditions      growth      immunity      infection      interventions      potential      researchers      strong   

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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."

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