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Journal Article Summary

Written and published during the SARS-CoV-2 pandemic, this article provides an in-depth overview of how the immune system works, while analysing the factors that negatively impact its optimal functioning (i.e., micronutrients deficiency, ageing, obesity). The study focuses on assessing the role that specific nutrients play in supporting the immune system response, with a particular interest in the antiviral defences. Moreover, the interconnection between the gut probiotic bacteria and the immune system is also analysed - and how a healthy microbiota seems to be protective against respiratory tract infections.