Delivery of Pfizer and BioNTech SE's vaccine to combat the Omicron Covid-19 variant was delayed by several weeks due to a slower-than-expected data gathering process, BioNTech Chief Executive Ugur Sahin told Germany's Bild today.

Once the vaccine is ready, the company will assess whether it is still needed, Sahin said.

"If the wave ends, that does not mean it can't begin again," he said during a video interview, adding that BioNTech was in a position to continue creating new vaccines as variants emerged if needed.

"I really don't see the situation as dramatic anymore," Ugur (above) said, referring to how the coronavirus would develop in the future.

BioNTech previously expected to launch the vaccine by the end of March but said in late January that this depended on how much clinical data regulators would require.

- Reuters