Chinese President Xi Jinping called Monday for greater world cooperation against COVID-19 and pledged to send an additional 1 billion doses of vaccine to other countries, while urging other powers to discard a "Cold-War mentality" at a time of rising geopolitical tensions — a veiled swipe at the United States.

The Chinese leader touted his country's efforts to share vaccines, fight climate change and promote development at home and abroad as he delivered the opening speech of a virtual gathering hosted by the World Economic Forum. The online event is being held in place of its annual January meeting in Davos, Switzerland, because of health concerns linked to the coronavirus pandemic.

A World Health Organization official warned last week of a "closing window of opportunity" for European countries to prevent their health care systems from being overwhelmed as the omicron variant produces near-vertical growth in coronavirus infections.

In France, Britain and Spain, nations with comparatively strong national health programs, that window may already be closed.

Novak Djokovic lost his final bid to avoid deportation from Australia on Sunday, ending a sensational 11-day battle over his Covid-19 vaccination status and dashing his dream of a record 21st Grand Slam.

Tens of thousands of devout Hindus, led by heads of monasteries and ash-smeared ascetics, took a holy dip into the frigid waters of the Ganges River in northern India on Friday despite rising COVID-19 infections in the country.

Hindu pilgrims congregated at the Sangam, the confluence of three rivers — the Ganges, the Yamuna and the mythical Saraswati — in Prayagraj city, 200 km (124 miles) northeast of Lucknow, the state capital of Uttar Pradesh, to participate in the Magh Mela festival, one of the most sacred pilgrimages in Hinduism. They bathed in the Ganges waters, a ritual Hindus believe will wash away their sins and free them from the cycle of death and rebirth.

Bayern Munich left back Alphonso Davies has been sidelined with evidence of heart muscle inflammation after being infected with the coronavirus, coach Julian Nagelsmann said Friday.

The Canada international will be out of action for at least "the coming weeks" after the inflammation, known as myocarditis, was detected in a follow-up examination after his return to training this week, Nagelsmann said. The coach described the inflammation as "mild" and "not so dramatic," citing the results of an ultrasound examination.

Shops, bars and restaurants in a southern Dutch town opened Friday in a protest action that underscored growing anger at weeks of coronavirus lockdown measures, a day before some of the restrictions are expected to be eased.

A local broadcaster showed people eating and drinking at outdoor tables of restaurants in the main street of Valkenburg in open defiance of a lockdown in the Netherlands. Authorities in the tourist town, which was devastated by flooding last year, didn't take action to enforce coronavirus restrictions.

The risk of recession is looming for Germany after Europe's biggest economy shrank at the end of 2021 and as it faces a bumpy start to this year, with the rapid spread of COVID-19's omicron variant deterring people from shopping and travel and supply bottlenecks holding back manufacturers.

Output in Germany fell by between 0.5% and 1% in the fourth quarter, the state statistics agency Destatis said Friday. Forecasts are also shaky for the first three months of 2022, and two straight quarters of falling output would leave Germany in recession, according to one commonly used definition.

Israel has administered a 4th vaccine dose to more than 500,000 people, the Health Ministry said Friday.

Israel began administering second boosters to the most vulnerable late last month and later began offering them to everyone over 60.

To mask or not to mask is a question Italy settled early in the COVID-19 outbreak with a vigorous "yes." Now the onetime epicenter of the pandemic in Europe hopes even stricter mask rules will help it beat the latest infection surge.

Other countries are taking similar action as the more transmissible — yet, apparently, less virulent — omicron variant spreads through the continent.

Tennis star Novak Djokovic faces deportation again after the Australian government revoked his visa for a second time.

Immigration Minister Alex Hawke said Friday he used his ministerial discretion to revoke the 34-year-old Serb's visa on public interest grounds three days before the Australian Open is to begin.