Table 2.

Polyclonal and Monoclonal antibodies.

Polyclonal (pAb)	Monoclonal (mAb)
Low cost	Expensive
Short (3–4 months)	Time-consuming (up to a year)
	Require considerable skills and training
Has high stability	Has moderate stability
Moderate specificity	High specificity
Has variable sensitivity	Has moderate to high sensitivity
Very easy to be obtained.	Difficult to be obtained.
Other drawbacks
1. Weak tissue penetration 2. Slow kinetics