Covid19 Pandemic root's / causes could not get established by the scientific community. Various vaccine development and its utilization is in progress, globally. Different vaccine showing its own results. Mostly, in context to Indian scansrio's, it's an peculiar outcome, that vaccine is reacting in parts to the human body and in some cases resulting Death of its user. It's really hard truth that some people's died after 48-72 hrs of vaccination. Only autopsy of dead body's can reveal the truth. WHO MUST allow this.
It's observed that the vaccine is unable to kill/difuse the virus. The mutant version's would be a great problem.
However, it can get concluded that the virus control needs its killing within human body. Further, a mechanical killing using SONICS, UVC, ELECTROMAGNETIC, AMPERE CONTROLLED ELECTRIC PULSES ETC can be useful by using a wristband etc. It will be useful to get rid of viral mutations etc.