But, once it starts showing its symptoms,
pesticide application would not be of much use. Therefore, detection of exact stage such as stage of viral DNA
replication or the production of initial viral protein is the key to the success of control of diseases particularly viral
diseases. Nano-based viral diagnostics, including multiplexed diagnostic kit development, have taken momentum in
order to detect the exact strain of virus and stage of application of some therapeutic to stop the disease. Detection
and utilization of biomarkers that accurately indicate disease stages is also a new area of research.