Emerging or evolving infectious animal and zoonotic diseases have the potential to spread quickly from the local area to international territory or spread from any species to humans. This has been evident by now, with the unprecedented magnitude of COVID-19 spread across the globe.Looking at the present scenario, we do not know how long it will take to contain this virus spread, even if it is contained in the nearest future, there is no guarantee that there will not be any sort of re-occurrence of emergent and re-emergent pathogens in future.

The world is at the threshold of a new era of emergent and re-emergent diseases that will have a tremendous impact on public health. Unless the challenges from these pathogens are controlled through strict management practices, vaccination and medication cannot adequately protect the people. This has bought biosecurity to the center stage.