Government’s Office of Sweden: https://www.government.se/articles/2020/03/ordinance-on-a-prohibition-against-holding-public-gatherings-and-events/
“What is a public gathering? What is a public event?”
These terms are defined in Chapter 2, Sections 1 of the Public Order Act.
Public gatherings include demonstrations, lectures, gatherings for religious practice, theatre performances, cinema screenings and concerts.
Public events include sporting events, dance performances, markets and fairs.
For a gathering to be considered public, it is necessary for it to have been arranged for the public or for the public to have access to it, or that the gathering should be regarded as equivalent to such a gathering given the conditions that apply for access to it.
For an event to be considered public, it is necessary for it to have been arranged for the public or for the public to have access to it.
Here others measures from Swedish Government: https://www.government.se/government-policy/the-governments-work-in-response-to-the-virus-responsible-for-covid-19/