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diff bet primary and secondary immune response

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diff bet primary and secondary immune response

Post  Ebad 'no on Sat Dec 13, 2008 9:46 pm

Primary Response-
`Initial contact with the Ag

`Slow, sluggish & short lived.

`Long lag phase.

`Low titres of Ab, does not persist for long.

`IgM – predominant.

Secondary Response:-
`Response to subsequent exposure to the same Ag.

`Prompt, powerful & prolonged.

`Short or negligible lag phase.

`Very high levels of Ab, lasts for long periods.

`IgG - predominant

Ebad 'no

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