Experts and politicians slammed the German government on Saturday for failing to ensure a sufficient supply of vaccine doses ahead of the country's coronavirus vaccination drive.

As a member of the EU vaccine procurement scheme, Germany is reliant on regulators at the European level granting authorization of the vaccine to prevent COVID-19 infection.

But the EU has taken longer than countries like the UK, US and Canada to give the go-ahead.

So far, only the BioNTech-Pfizer vaccine is permitted in EU member states, but the block as a whole only made an order for 300 million doses during the summer, in the belief that more vaccine alternatives would be available.

Frauke Zipp, a neurologist and member of the advisory Leopoldina Academy of Sciences, on Saturday slammed German lawmakers for their lack of foresight over vaccine procurement.

"I consider the current situation a gross failure," she told Die Welt newspaper. "Why didn't they order much more of the vaccine during the summer just to be safe?"