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1088 Microbiology

A 7-month-old baby who is failing to thrive is brought into a neighborhood clinic. History reveals that the baby’s mother died of AIDS 2 months ago. Blood is obtained and sent to the laboratory to check for HIV infection. The physician orders a test whose detection system is based on enzymatic activity. Which of the following tests is a heterogeneous immunoassay?

ACoagglutination (COA)
BCounter immuno-electrophoresis (CIE)
CEnzyme-linked immunosorbent assay (ELISA)
DLatex agglutination (LA)
Microbiology
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