AstraZeneca’s Covid-19 vaccine is not perfect, but will have a big impact on the pandemic, its chief executive has predicted, as the drugmaker pledged to double supplies to more than 200 million doses per month by April, Reuters reports.

“Is it perfect? No it’s not perfect, but it’s great. Who else is making 100m doses in February?” CEO Pascal Soriot said on a conference call about the vaccine.

“We’re going to save thousands of lives and that’s why we come to work everyday.”

“In a year or two we will look back and everybody will realise we made a big impact,” Soriot said.