The second phase of COVID-19 vaccine roll out has begun in India, which not only includes the young and the healthy but also allows senior citizens above the age of 60 and select people over 45 years of age to get the vaccine jab. While the current mode of COVID vaccines is limited to injected vaccines, prospects of nasal vaccines are also being discussed in and around the world.

The second phase of COVID-19 vaccine roll out has begun in India, which not only includes the young and the healthy but also allows senior citizens above the age of 60 and select people over 45 years of age to get the vaccine jab. While the current mode of COVID vaccines is limited to injected vaccines, prospects of nasal vaccines are also being discussed in and around the world.