Pcr Amplification Graph. A normal amplification curve obtained using a dilution series of a sample. The curve is a semi log view y axis is a log scale.
Few of us can successfully imagine a trillion of anything so it s no surprise that the general public has trouble understanding how much a covid pcr test amplifies the detected virus to determine whether a test is positive. A pcr amplification curve which looks like figure 1 is generally a sign of a healthy good pcr reaction. The initial pcr cycles 1 endash 19 above produce low fluorescent signals that cannot be detected by the ccd camera.
Few of us can successfully imagine a trillion of anything so it s no surprise that the general public has trouble understanding how much a covid pcr test amplifies the detected virus to determine whether a test is positive.
Polymerase chain reaction amplification is used to detect bacterial and viral infections. A normal amplification curve obtained using a dilution series of a sample. A normal amplification curve from a dilution series of a sample is shown above. Conventional diagnostic procedures are based on the ability to grow organisms in culture or to detect their presence in patients by using antibodies.
