According to the municipality of Västervik, it is unclear how the infection came in, but they are now taking strong measures to prevent it from spreading.
"We are gathering and directing all resources and our entire commitment to combating the spread of infection in housing," says Jörgen Olsson, social manager in the municipality of Västervik, in a press release.
All seven persons confirmed to be infected have been moved to the evacuation residence at Annagården to receive care and to stop the spread of the special accommodation.