Antigens, Epitopes

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Antigens, Epitopes
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Microbial Antigens
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Response to Antigens
antigen
antibody
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Opsonization
Neutralization
toxicity site
antitoxin
toxin
Agglutination
phagocyte
Viral inhibition
Precipitation
Alcamo Fig. 18.18
antigen
a.k.a. viral neutralization
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Terminology

• Immunoassay
• Serology

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Precipitation Reactions
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Antibody Titer
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Immunodiffusion Test
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Hemagglutination
http//www.tdh.state.tx.us/lab/serology_agg.htm
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Principal of Fluorescent Antibody Assays
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Enzyme-Linked ImmunoSorbent Assay (ELISA)
Alcamo Figure 19.12
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ELISA
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ELISA Microtiter Plate