Europe's medicines regulator on Monday approved the use of the COVID-19 vaccine jointly developed by US company Pfizer and its German partnerBioNTech, putting Europe on course to start inoculations within a week.

European Union countries including Germany, France, Austria and Italy have said they plan to start vaccinations from December 27as Europe tries to catch up with the US and Britain,where inoculations began earlier this month.

Having gained the green light from the European Medicines Agency (EMA), the final step is approval by the European Commission, which is expected in the coming days. The Commission typically follows the EMA's advice.

Preparations for the vaccine roll-out come as the identification of a highly infectious new strain of the coronavirus in Britain caused chaos across the region, with countries shutting off travel ties with the UK and disrupting trade ahead of the Christmas holiday.

The pandemic has killed about 470,000 Europeans and is picking up pace in the winter months, crushing economies in the process. Many governments have imposed tighter restrictions on households to try to curb a second wave of infections and avoid overwhelming healthcare systems.

Commission head Ursula von der Leyen had already targeted the start of vaccinations over the December 27-29 period.

Student medics, retired doctors, pharmacists and soldiers are being drafted into a European vaccination campaign of unprecedented scale.

A phased-in approach means frontline healthcare workers and elderly residents of care homes are being prioritised, with most national schemes not reaching the general public until the end of the first quarter of 2021 at the earliest.

The goal of the 27-member EU is to reach coverage of 70 per cent ofits 450 million people.

The drugs regulator in Switzerland on Saturday authorised the vaccine for use in people aged over 16.