Vaccines and Immunity: When can we achieve herd immunity?

Aggressive vaccination programmes are underway in ASEAN, even as new variants appear on the horizon. What do we know about these variants and the challenges they pose to sero-conversion in a vaccinated population, longevity of host immunity, and achieving the ‘holy grail’ of herd immunity? Earlier estimates for achieving herd immunity to SARS-CoV-2 were 60-70%. The new estimate is 80-90% due to the spread of SARS-CoV-2 Delta variant, according to a report from Infectious Diseases Society of America on Aug 3, 2021. In this webinar, we will discuss ongoing vaccination efforts using various vaccines, challenges posed by mutating virus and possible approaches to eventually achieve herd immunity to SARS-CoV-2.

Additionally, the webinar will introduce the ASEAN Serosurveillance Study for COVID-19 Vaccines. The study is coordinated by ASEAN Dx Initiative and supported by Temasek Foundation.

This event is organised by ASEAN Dx, supported by A*StartCentral.