University of Gothenburg has taken an insurance covering its international exchange students, called "The Swedish State's Insurance for Foreign Students in Sweden".
All students in Sweden are covered by the personal injury insurance (the general student insurance) that is obtained on behalf of universities and colleges within the State insurance system by the Central Student Grants Committee. The insurance applies in Sweden during school hours and during travel to and from the location where school hours are spent.
Since many foreign students in Sweden have not had the possibility to execute their own insurance for illness and for accidents during leisure time, the University of Gothenburg has taken an additional insurance for all it's incoming exchange students. This insurance provides foreign students cover for medical expenses. It also contains a certain accident cover in the form of a fixed amount in conjunction with disability or death, as well as liability and legal expenses cover. It applies twenty-four hours a day in Sweden.
You can find more information and full conditions of the insurance here.