Until now, there have been a number of mutations of the virus of which 5 have been tagged by the World Health Organisation (WHO) as variants of concern. Experts have also warned about possibilities of new variants of this virus.
This draws attention towards the past incidents of COVID infection waves. With every new variant, the symptoms, the due course of action of the virus and the hospital management system’s response had drastically changed.
The only thing that remained constant during this was wearing masks. While the vaccination program was on and is still continuing, the use of masks gives a primary protection to an individual.