Sweden's government is recommending wearing face masks on public transport during the rush hour, reversing its earlier Covid guidance.
It will also cut from the current eight to four per table the number of people sitting together in restaurants, and ban alcohol sales after 20:00.PM Stefan Löfven unveiled the measures, which will take effect soon.
Elsewhere in Europe, Italy and Austria are the latest countries to be placed in lockdowns over the Christmas period.
Sweden, which has never imposed a full lockdown, has seen nearly 360,000 cases and 8,000 deaths - many more than its Scandinavian neighbours.
The country had previously been one of only a few nations not to recommend masks in public outside of healthcare settings.
This is despite strong recommendations given by the World Health Organization (WHO), BBC reported.