Question
How pathogen is internalised?
Answer :
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Pathogens are internalized into the body through various mechanisms, primarily involving the immune system's cells, such as phagocytes. The process begins when a pathogen, such as a bacterium or virus, comes into contact with the host's immune cells, typically dendritic cells or macrophages. These immune cells possess receptors, like pattern recognition receptors (PRRs), that recognize pathogen-associated molecular patterns (PAMPs) on the surface of the pathogen. Once a pathogen is detected, the immune cell extends its membrane around the pathogen, a process known as phagocytosis. The cell forms a phagosome, an
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