Very recently published data states that the number of COVID-related deaths in 2021 was higher than in 2020, despite the larger amount of people who are vaccinated. Furthermore, we are being told that the extent of the protection being offered by the vaccines is either not enough or doesn’t last long enough and that we now have to take booster shots. For how long will the booster shots offer protection? Will we have to take booster shot after booster shot...