Immunology

Immune Response

1st Exposure = Primary Response

2nd Exposure = Secondary Response

Primary Response

Latent Period = Time to find antigens and react

1 to 2 weeks depending on B cell response time

YY

B CellAntigen

Primary Response

Exponential Phase = IgM antibodies

YY

B CellAntigen

YY YYYYY YYY

YY YYY

YY YYY

YY YYY

Primary Response

Declining Phase = IgG antibodies

YY

B CellAntigen

YY

YYYY

Some cells set aside for future = Memory Cells

Secondary Response

YY

MemoryAntigen

YY

YYYY

1/2 time to respondMuch stronger response

Vaccines cause a primary response

Real disease - results in secondary response

Not as sick or not sick at all

http://panbiodengue.com/page/immune-response

http://www.youtube.com/watch?feature=player_detailpage&v=pddZViGAJ7I

REVIEW