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The way COVID-19 immunity works and what it means for vaccines

The way COVID-19 immunity works and what it means for vaccines What are the major components of the immune system involved in fighting COVID-19? By Nicola Davis / The Guardian The immune system has several parts, including a first-line response involving immune cells that alert the body to an attack and home in on infected cells. This response leads to the activation of what is known as the “adaptive” immune system, which is important for future immunity. “[The adaptive immune system] has this special feature of memory, which is what you exploit in vaccines,” said Danny Altmann, an expert in immunology of infectious disease at Imperial College London.

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