Forward from: lmmunology Community
Influenza virus (Antigenic drift)
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β Pathogens, such as the influenza virus, have receptors that enable them to bind to host cell surfaces.
β Antibodies to these viral receptors prevent the virus from binding to and infecting cells.
β These are neutralizing antibodies, since they neutralize the ability of the virus to infect the cell.
π However, some viruses will have mutations that alter the receptor in ways that prevent the binding of neutralizing antibodies while leaving the virus able to bind to, and infect, host cells.
β In this way the pattern of antigens expressed by a virus can change over time. This process of accumulation of small changes is called antigenic drift, and contributes to our susceptibility to influenza infections year after year.
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https://telegram.me/joinchat/AAAAAEGF1HigCuVnbybPZw
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β Pathogens, such as the influenza virus, have receptors that enable them to bind to host cell surfaces.
β Antibodies to these viral receptors prevent the virus from binding to and infecting cells.
β These are neutralizing antibodies, since they neutralize the ability of the virus to infect the cell.
π However, some viruses will have mutations that alter the receptor in ways that prevent the binding of neutralizing antibodies while leaving the virus able to bind to, and infect, host cells.
β In this way the pattern of antigens expressed by a virus can change over time. This process of accumulation of small changes is called antigenic drift, and contributes to our susceptibility to influenza infections year after year.
π₯ Show the Movieπ₯
πππππππππ
https://telegram.me/joinchat/AAAAAEGF1HigCuVnbybPZw