From 1 April 2022, there are no corona-related restrictions on travel to Sweden. Thus, travelers can travel into Sweden without showing a negative covid-19 test or other covid certificate. On 9 February, all restrictions on entry to Sweden from the Nordic countries and other EU / EEA countries were lifted. On 31 March, the previous entry ban for foreign citizens traveling into Sweden from countries outside the EU / EEA expired.
Entry rules and regulations can be found here.
You can find emergency information from Swedish authorities regarding the Corona virus including measures taken by the Swedish Government here.
The Public Health Agency of Sweden has a national responsibility for public health issues and works to ensure good public health. You will find Q&A about Covid-19 in Sweden at the Agency’s homepage.