active immunity and acquired immunity?

[Lesliel1]

hi,
My biology book is like really vague and it just says that active immunity and acquired immunity is when and organism produces its own antibodies but it doesn't say what the difference is..or its really crappy at explaining. LOL. So.. can someone tell me? =D

thanks,
leslie

[Russ]

I haven't seen those terms used before, but I presume:

active immunity = the organism produces its own immune response to a pathogen, involving antibodies and cellular responses
acquired immunity = an organism receives pre formed antibodies from an external source

There's also a nice thread for questions stickied at the top of the forum. I generally only check that one through the "my unread posts" page, so you'll get more attention in there

[simpak]

Russ is correct
So for VCE, active immunity is both when the person has had the disease themselves and their body has actively made antibodies from scratch, and it also occurs when the person was given an injection which induces an immune response.  So for instance, a vaccine might contain a part of an inactive virus and that would stimulate the body to create its own antibodies to prevent later attacks.

And passive immunity is where you get antibodies from somewhere else.  An example would be the exchange of immunity between a mother and her unborn child, or an injection which contains the antibodies in the serum.

[Lesliel1]

so acquired immunity is passive immunity? =D

[WhoTookMyUsername]

I think aquired immunity refers to any immunity ,but not innate immunity,  according to my textbook

and

http://www.medterms.com/script/main/art.asp?articlekey=26309

[Lesliel1]

im confused now :S LOL xD

[simpak]

I think aquired immunity refers to any immunity ,but not innate immunity,  according to my textbook

and

http://www.medterms.com/script/main/art.asp?articlekey=26309

Yeah maybe, I just assumed they were using an alternate term.

[34590]

OMG So not up to this yet....

OK I'm freaking out

[jbebbo]

OMG So not up to this yet....

OK I'm freaking out

Active immunity is when antibodies are produced by your own body in response to foreign antigens. It is the opposite of passive immunity, which is when you are given antibodies from an external source - a common example is antivenom.

Acquired immunity (also called specific immunity) is the opposite of innate (a.k.a non-specific) immunity. Innate immunity is things like skin, interferons, phagocytic cells - basically defenses of the immune system which are not targeted at any particular pathogens. Acquired immunity, on the other hand, is targeted at a particular antigen - it involves the action of B and T cells, clonal selection and expansion.

Hope that helps!

[simpak]

OMG So not up to this yet....

OK I'm freaking out

Active immunity is when antibodies are produced by your own body in response to foreign antigens. It is the opposite of passive immunity, which is when you are given antibodies from an external source - a common example is antivenom.

Acquired immunity (also called specific immunity) is the opposite of innate (a.k.a non-specific) immunity. Innate immunity is things like skin, interferons, phagocytic cells - basically defenses of the immune system which are not targeted at any particular pathogens. Acquired immunity, on the other hand, is targeted at a particular antigen - it involves the action of B and T cells, clonal selection and expansion.

Hope that helps!

U make much sense, thanks for clearing up my inability to maintain internal dictionaries.