COVID-19 Booster: What Is It, How Far Is It Necessary?
The World Health Organisation Chief Scientist, Soumya Swaminathan stated that there are not enough scientific proofs in favour of COVID-19 booster shot after vaccination. However, UK's Health Secretary, Matt Hancock said that the booster shots may roll out soon in order to prevent another surge of COVID-19. Besides, several countries have considered to test a mixed combination of vaccines which seems to be successful so far.