A different kind of COVID vaccine is about ready to roll
Protein subunit vaccines work by injecting people with a tiny portion of a virus. In the case of the COVID-19 vaccine, that tiny portion is the spike protein that the coronavirus uses to enter cells.
A new kind of COVID-19 vaccine is about to roll out around the world. Although it won't replace the highly successful vaccines currently available, it could make a difference in the course of the pandemic, especially in lower resourced countries.
These new vaccines are what's called . They work by injecting people with a tiny portion of the virus. In the case of the
