A person in the Stockholm region has been confirmed infected with smallpox, FHM writes in a press release.
The authority is now investigating whether there are more cases in Sweden and is requesting from the government that the disease be classified as a general dangerous disease.
The infected person in Sweden is not considered seriously ill.
During the spring, an unusual number of cases of smallpox have been found in Europe. Over 40 cases have recently been detected in Spain and Portugal. The infection is not considered highly contagious, but close contact is required.