Negative Patient B Patient A 1:2 1:10 1:100 Positive Patient C
Pathogenicity
Infection and Transmission
The infections are generated by the pathogenic organisms present in the environment. They maintain the capacity to invade a host body and establish colonies. A disease caused by such infectious agents is called a communicable disease or transmissible disease. These diseases spread through diverse means including blood, food, water, air, or vectors.
To diagnosis, we used a procedure known as a "sandwich ELISA" (Enzyme-Linked Immunosorbent Assay).
1.In the "ELISA sandwich," what is the "meat"?
2.Both patients A and B had positive results. Why are these two patients' outcomes so different?
3.What is one potential cause of an ELISA false negative result? What is one potential cause of an ELISA false positive result? What is another example of how an ELISA assay should be used?
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