‘The discussion took a new turn this week as fresh data backed up earlier findings - yet to be peer-reviewed - that the efficacy of both Pfizer's and Moderna's vaccines declines in a matter of months, and that one more dose of the Pfizer shot can reduce the rates of infections by 11 times and severe illness by 20 times in the elderly.
‘There are many arguments both for and against boosters, but what concerns policymakers and health professionals first and foremost is whether the science shows that they are a necessity. In considering this, we examine three key issues: Are immunity levels indeed dropping? Will extra shots really help and are they safe? What are the broader implications of giving another shot to those already vaccinated?’
Read here (Straits Times, Sept 19, 2021)
