Can someone explain innate, active, and passive immunity in terms that I can understand?!
Question: Can someone explain innate, active, and passive immunity in terms that I can understand.?
I'm doing this for a health assignment, and I can find nothing on the internet that I can understand. Any explanations are helpful, thanks.Health Question & Answer
Answers:
It might be more helpful to start off thinking of four concepts rather than three: innate immunity compared with adaptive immunity, and also active immunity compared with passive immunity. Adaptive immunity and active immunity refer to much the same concept.
Innate immuity refers to those functions of the immune system that are not directed toward a specific pathogen or other challenge: they're general functions that can be deployed toward a whole variety of challenges. Examples are the complement system, inflammation, and the actions of various immune system cells.
http://en.wikipedia.org/wiki/Innate_immu...
Adaptive immunity is a later evolutionary development. This is the part of the immune system that "learns" to recognise specific pathogens and challenges, and mounts a specific response against that challenge when it turns up later. Some of those responses are antibody production, and some the activation of specific cells.
http://en.wikipedia.org/wiki/Adaptive_im...
In active immunisation (such as with vaccination), the immune system is taught to recognise a specific pathogen by presenting it with the immune-stimulating antigen. For example, in a hepatitis B vaccination, a protein that the immune system recognises as the hep B surface antigen is injected two or three times. The immune system adapts to produce specific hep B surface antibodies, so that if real hepatitis B virus enters the system the immune system is already primed to mount a rapid response. Such priming tends to be long lasting.
http://en.wikipedia.org/wiki/Immunisatio...
Passive immunisation is immunity conferred by being given antibodies from outside the body. Examples include giving hepatitis B or tetanus immunoglobulin from blood donors, or the antibodies that are transferred from mother to baby during breast feeding. Such immunity lasts only as long as the antibodies stay in the system.
http://en.wikipedia.org/wiki/Passive_imm...Health Question & Answer
Innate immuity refers to those functions of the immune system that are not directed toward a specific pathogen or other challenge: they're general functions that can be deployed toward a whole variety of challenges. Examples are the complement system, inflammation, and the actions of various immune system cells.
http://en.wikipedia.org/wiki/Innate_immu...
Adaptive immunity is a later evolutionary development. This is the part of the immune system that "learns" to recognise specific pathogens and challenges, and mounts a specific response against that challenge when it turns up later. Some of those responses are antibody production, and some the activation of specific cells.
http://en.wikipedia.org/wiki/Adaptive_im...
In active immunisation (such as with vaccination), the immune system is taught to recognise a specific pathogen by presenting it with the immune-stimulating antigen. For example, in a hepatitis B vaccination, a protein that the immune system recognises as the hep B surface antigen is injected two or three times. The immune system adapts to produce specific hep B surface antibodies, so that if real hepatitis B virus enters the system the immune system is already primed to mount a rapid response. Such priming tends to be long lasting.
http://en.wikipedia.org/wiki/Immunisatio...
Passive immunisation is immunity conferred by being given antibodies from outside the body. Examples include giving hepatitis B or tetanus immunoglobulin from blood donors, or the antibodies that are transferred from mother to baby during breast feeding. Such immunity lasts only as long as the antibodies stay in the system.
http://en.wikipedia.org/wiki/Passive_imm...Health Question & Answer