Question

In pathogenicity tests what is logic of using positive & negative control

Answer 1

Answer:

Your positive control should confirm that your target antigen is expressed on the relevant cells and tissues. Your negative control should consist of tissues or cells where your target protein is known to be absent. You should always use several positive and negative controls at the same time. If possible, you should confirm the expression of the required target molecule in your sample using more than one assay.