LONDON - The Omicron coronavirus variant poses a high risk of global infection surges, the World Health Organization (WHO) said on Monday.
Following is a selected country-by-country snapshot of confirmed Omicron cases and travel restrictions imposed in an attempt to slow its spread.
CONFIRMED CASES BY NATION:
PORTUGAL
Portugal detected 13 cases of the Omicron variant on Monday, all involving players and staff members of Lisbon soccer club Belenenses SAD after one player recently returned from South Africa, health authority DGS said.
SCOTLAND
Scotland reported six cases of Omicron on Monday, some of which were not linked to travel in southern Africa.
Britain had earlier announced three cases of the variant.
"On some of the cases involved, we are satisfied that there is no travel history or travel connection with southern Africa," Scotland's deputy First Minister John Swinney told BBC radio.
"So that means that it is likely that...Omicron...is circulating within the community."
NETHERLANDS
Dutch health authorities said on Sunday 13 cases of Omicron had been found among passengers on two flights from South Africa that arrived on Friday.
They were among 61 passengers who tested positive for COVID-19 on the two flights, and who are being kept in isolation at a hotel near the airport.
GERMANY
Two cases of Omicron were detected in the southern state of Bavaria and a suspected case was found in the west of the country, health officials said on Saturday.
AUSTRIA
Austria has identified a first case of Omicron, the health ministry of the Alpine province of Tyrol said on Monday.
ITALY
The National Health Institute said a case of the new variant had been detected in Milan in a person coming from Mozambique.
CZECH REPUBLIC
Czech health authorities said they were examining a suspected case of Omicron in a person who spent time in Namibia.
AUSTRALIA
Australia said on Sunday that two people arriving from southern Africa over the weekend had tested positive for the Omicron variant.
TRAVEL RESTRICTIONS:
JAPAN
Japan said on Monday it would shut its borders to foreigners from midnight to prevent a spread of the Omicron variant there.
Japanese returnees from a number of specified nations will have to quarantine in designated facilities, Prime Minister Fumio Kishida told reporters.
"These are temporary, exceptional measures that we are taking for safety's sake until there is clearer information about the Omicron variant," Kishida said.
ISRAEL
Israel on Saturday became the first country to shut its borders completely in response to Omicron, and said it would use counter-terrorism phone-tracking technology in order to contain the variant's spread.
Prime Minister Naftali Bennett said the ban would last 14 days.
UNITED STATES
The U.S. Centers for Disease Control and Prevention (CDC) and the State Department on Saturday advised against travel to eight southern African countries.
The White House earlier said it would bar nearly all foreign nationals who have been in any of eight countries within the last 14 days from flying to the United States effective Monday.
BRITAIN
Britain has barred entry to non-residents from 10 southern African states, and British and Irish residents arriving from those countries must quarantine in a government-approved hotel for 10 days.
INDIA
India will make on-arrival COVID-19 testing mandatory for air travellers from more than a dozen countries, including South Africa and Britain where the Omicron variant has been detected, the health ministry said on Monday.
The decision, effective Dec. 1, came after a man who returned from South Africa tested positive for COVID-19, though it is not yet clear which variant of the virus he contracted.
BRAZIL
Brazil will shut its borders to travellers arriving from six southern African countries, the chief of staff to President Jair Bolsonaro said on Friday.
CANADA
Canada is closing its borders to foreign travellers who have recently been to seven southern African nations to help stop the spread of Omicron, its health minister said on Friday.
AUSTRALIA
Australia said on Monday it would delay the reopening of its international border by two weeks after reporting its first cases of the Omicron variant.
SINGAPORE
Singapore has deferred the start of vaccinated travel lanes for some Middle Eastern countries that are regarded as transit hubs for travel from countries affected by Omicron, its health ministry said.