Drugmakers GlaxoSmithKline and Sanofi said Friday that their potential COVID-19 vaccine won’t be ready until late next year because they need to improve the shot’s effectiveness in older people.

A Chinese inactivated COVID-19 vaccine candidate has been proved safe and tolerable and can induce a quick immune response, according to the findings from early and mid-stage clinical trials published in the journal The Lancet Infectious Diseases.

As many countries and companies are racing to develop vaccines to stop the COVID-19 pandemic, experts said Bangladesh needs to make ‘vaccine diplomacy’ a part of its strategy to get one fast once it is ready.

Dr Anthony Fauci has warned that the emergency use of authorisation for a potential Covid-19 vaccine could hurt the development of other vaccines.