Our vaccine to potentially protect up to couple of years: Moderna CEO

Moderna's COVID-19 mRNA vaccine is likely to give protection of up to couple of years, company's CEO Stéphane Bancel has said. "The antibody decay generated by the vaccine in humans goes down very slowly," he added. Bancel stated they'd soon prove that their vaccine will be equally effective against COVID-19 variants that emerged in the UK and South Africa.