Albert Bourla, chairman and chief executive of global pharmaceutical giant Pfizer Inc., was awarded on Wednesday the prestigious Genesis Prize for his efforts in leading the development of a COVID-19 vaccine.

The $1 million award is granted each year to a person for their professional achievements, contributions to humanity and commitment to Jewish values. The Genesis Prize Foundation said Bourla had received the largest number of votes in an online campaign in which some 200,000 people in 71 countries participated.

Hong Kong authorities said Tuesday that they will kill about 2,000 small animals, including hamsters, after several tested positive for the coronavirus at a pet store where an employee was also infected.

The city will also stop the sale of hamsters and the import of small mammals, according to officials from the Agriculture, Fisheries and Conservation Department. The pet shop employee tested positive for the delta variant on Monday, and several hamsters imported from the Netherlands at the store tested positive as well.

Facing a nationwide surge in coronavirus cases fueled by the spread of the highly transmissible omicron variant, Abu Dhabi is requiring people entering the city to show proof of booster shots.

The government's health app said earlier this week that people entering the capital of the United Arab Emirates must show a "green pass," confirming their vaccination status. The app says that visitors are no longer considered fully vaccinated unless they have received a booster at least six months after their second dose.

An Israeli hospital has said preliminary research indicates a fourth dose of the coronavirus vaccine provides only limited defense against the omicron variant that is raging around the world.

Sheba Hospital last month began administering a fourth vaccine to more than 270 medical workers — 154 who received a Pfizer-BioNtech vaccine and 120 others who received Moderna's. All had previously been vaccinated three times with the Pfizer-BioNtech vaccine.

Japan's government is preparing social restrictions in Tokyo and other regions as the omicron variant of the coronavirus infects more people.

Japan has never had a lockdown during the pandemic but has focused instead on asking restaurants and bars to close early. Crowds are back in many parts of Japan, with people packing stores and events, while COVID-19 cases jump.

Japanese Prime Minister Fumio Kishida told parliament on Monday that fighting the pandemic and strengthening defense are his government's top priorities.

Kishida delivered a speech opening this year's parliamentary session hours after North Korea test-fired two possible ballistic missiles — its fourth tests this month.

Greece imposed a vaccination mandate Monday for people 60 and older, as the country's vaccination rate remains below the European Union average and a spike in infections has put sustained pressure on Greek hospitals.

Older people failing to get vaccinated will face penalties, starting at a 50-euro ($57) fine in January and followed by a monthly fine of 100 euros ($114) after that.

China has restored railway freight traffic with North Korea that had been suspended over pandemic concerns, its foreign ministry said Monday.

Ministry spokesperson Zhao Lijian said the connection across the Yalu River between China's Dandong and Sinuiju in North Korea had been restored after "friendly consultation between the two sides."

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.