Which of the following serve the purpose of early diagnosis?

a-Enzyme Linked Immuno-sorbent Assay (ELISA).

b-Polymerase Chain Reaction (PCR).

c-Both A and B is the correct option .

d-Blood tests

Polymerase Chain Reaction (PCR) and Enzyme Linked Immuno-sorbent Assay (ELISA) are some of the techniques that serve the purpose of early diagnosis.

Using conventional methods of diagnosis (serum and urine analysis, etc.) early detection is not possible.