Testing mandatory Mandatory Covid testing at airports for all arrivals from at-risk . Which would Mean all countries where the new corona virus variant-omicron has been found.

According to the news guidelines-For passengers found positive in these test, they will be isolated and treated as per the clinical management protocol besides their samples also taken for Whole Genome Sequencing. The passengers found negative can depart the airport but have to undergo home isolation for 7 days, followed by repeat testing on 8th day of arrival in the country.
Earlier today Reuters reported - The first probable case of the Omicron variant of COVID-19 has been detected in Switzerland, the government said late on Sunday, as the country tightened its entry restrictions to check its spread.

The case relates to a person who returned to Switzerland from South Africa around a week ago, the Federal Office for Public Health said on Twitter.

https://www.reuters.com/markets/europe/first-suspected-case-omicron-variant-covid-19-detected-switzerland-2021-11-29/

New York Times headlines say the government is insisting on vaccination and social distancing norms.
Japan, Israel and Morocco impose bans on all foreign travelers .

• U.S. health officials urge vaccinations as Omicron spreads.

. South Africa, where Omicron was detected, is an outlier on the least vaccinated continent.

Scientists are studying whether Omicron leads to severe illness.

• Omicron cases are discovered on Amsterdam

flights as scientists race to evaluate the threat.

• A woman is charged with arson in quarantine hotel fire in Australia.

Airlines were seeing a travel rebound before Omicron arrived.

https://www.nytimes.com/live/2021/11/28/world/covid-omicron-variant-news