The Austrian city of Salzburg currently is currently the area of Europe with the worst COVID outbreak, according to the latest figures from the World Health Organization (WHO).
It comes as German chancellor Angela Merkel warned of a "full force" fourth wave of coronavirus sweeping the continent.
Soaring COVID cases across Europe are prompting governments to reintroduce lockdown measures, including Austria, which has now placed unvaccinated people into lockdown.
The Netherlands has introduced a three-week snap lockdown in a bid to control soaring infections – the first Western European nation to bring back a full-country lockdown since last winter.
The WHO collates COVID outbreaks at subnational level, showing the continent's worst-hit regions. The figures below shows the seven-day incidence.
The 10 European COVID hotspots are:
Salzburg, Austria: 1,771 cases per 100,000
Oberösterreich, Austria: 1,580 cases per 100,000
Posavska, Slovenia: 1,515 cases per 100,000
Međimurska, Croatia: 1,462 cases per 100,000
Gibraltar, United Kingdom: 1,270 cases per 100,000
Jugovzhodna Slovenija, Slovenia: 1,248 cases per 100,000
Podravska, Slovenia: 1,245 cases per 100,000
Zasavska, Slovenia: 1,163 cases per 100,000
Olomoucký, Czech Republic: 1,122 cases per 100,000
Jász-Nagykun-Szolnok, Hungary: 1,113 cases per 100,000
Austrian coronavirus infections hit a new daily record of 14,416 cases on Wednesday, on the third day of a lockdown for those not fully vaccinated.
It has one of the highest infection rates on the continent, with a seven-day incidence of 925 per 100,000 people.
The Netherlands re-imposed some lockdown measures last weekend for an initial three weeks to slow a resurgence of coronavirus, but infections have continued to spread.
On Tuesday, the National Institute for Health (RIVM) reported a record of more than 110,000 cases in the week ended 16 November, an increase of 44% from the week before, with the strongest rise among children aged 4-12.
On Wednesday, Germany reported 52,826 new infections – a jump of a third compared with a week ago and another daily record.
The Social Democrats, Greens and Free Democrats, who are negotiating to form the next government, are set to propose a range of measures to fight the pandemic in a draft law set to be voted on in parliament on Thursday.
They want to force people using public transport or attending workplaces to provide a negative COVID-19 test, or proof of recovery or vaccination.
Slovakia reported 8,342 new coronavirus cases for Tuesday, the highest daily tally to date in the central European country of 5.5 million people, health ministry data showed on Wednesday.
Prime minister Eduard Heger said the government would allow only vaccinated people to attend large events, and set rules for testing at workplaces.
Non-essential shops and services, sports, wellness and hotels will be open only for vaccinated people or those who had overcome COVID-19 in the past six months.
On Monday, Boris Johnson warned that “storm clouds are gathering" over parts of Europe with a “new wave” of COVID sweeping through the continent.
Watch: Germany's Merkel calls country's Covid-19 situation 'dramatic'