BioNTech chief executive Ugur Sahin has stated that Europe will reach herd immunity within the next four months.
Experts believe that a level of 70% immunisation would significantly disrupt the transmission of Covid-19 in Europe although the exact threshold remains a matter of debate.
At the latest, we should expect herd immunity by August according to Mr Shahin. The BioNTech shot, more commonly known as the Pfizer shot, makes up a large share of doses administered in Europe and North America.
The efficacy of the vaccine declines after six months from 95% to 91% and it has been suggested that a third shot will be necessary to bring it back to almost 100% again.
There are also suggestions that a booster will be required every year or every 18 months.