Microorganisms have antigens present on their surface, Antigen tests detect the presence of a microorganism directly so that doctors can diagnose an infection quickly, without waiting for a person to produce antibodies in response to the microorganism.
Evaluation of colony morphology is not enough as it is not a definitive test. colonies of different bacteria can look the same, so it can help narrow.
What is antigen tests?
An antigen test is an immunoassays test used for the detection of a specific viral antigen that indicates current viral infections.
Hence, Antigen tests detect the presence of a microorganism whereas, Evaluation of colony morphology is not enough as it is not a definitive test.
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