the immune system: humoral and cell-mediated immunity

powerpoint presentation the immune system: humoral and cell-mediated immunity a complex system of organs, tissues, cells, and processes that protect us from disease.​ enables the body to recognise anything that is different from itself (i.e. “foreign”) and that is potentially harmful.​ creates defences against these invaders, which are called pathogens.​ divided into two broad categories: ‘innate immunity’ and ‘acquired immunity.’​ the immune system iavi vaccine literacy library | module 3 2 iavi vaccine literacy library | module 3 innate immune defences​ first to respond to any pathogen.​ not specific to one pathogen.​ cannot usually be “taught” to respond better by a vaccine.​ often not enough to get rid of pathogens as the first line of defence and a second line …

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