Updated On: 19 November, 2020 08:18 AM IST | Washington | Agencies

A woman walks by Pfizer's New York headquarters as city tries to contain a spike in COVID-19 cases. Pic/AFP
Pfizer says more interim results from its ongoing coronavirus vaccine study suggest the shots are 95 per cent effective and that the vaccine protects older people most at risk of dying from COVID-19.
The announcement, just a week after Pfizer first revealed promising preliminary results, comes as the company is preparing within days to formally ask US regulators to allow emergency use of the vaccine.