Switzerland has announced stronger anti-Covid-19 measures, as its government battles to contain a surge in coronavirus infections and the arrival of the Omicron variant in the country, reports Reuters.

The country will expand the requirement to wear masks and produce a certificate to prove a person is vaccinated or has recovered from the virus, the government said.

Masks will have to be worn indoors wherever a certificate obligation applies, it said.

It also reinforced its message for people to work from home, while allowing events and venues to restrict entry only to people who are vaccinated or recovered.

The measures will go into effect on Monday, December 6 and be effective until January 24.