Who are most protected against Delta Covid variant?

The sudden surge of COVID-19 cases in the past and the emergence of new variants time and again indicate the unpredictability of the SARs-COV-2 virus. The B.1.617.2 variant of coronavirus, also known as the Delta variant has been categorized as a Variant of Concern (VoC) and is said to have driven India's second wave.

Who are most protected against Delta Covid variant?
The sudden surge of COVID-19 cases in the past and the emergence of new variants time and again indicate the unpredictability of the SARs-COV-2 virus. The B.1.617.2 variant of coronavirus, also known as the Delta variant has been categorized as a Variant of Concern (VoC) and is said to have driven India's second wave.