But most likely there are several times more infected than currently over 9100 officially.
Due to the high official fatality rate the number infected could be for example 7 times higher - or more - in Italy, if you compare with South Korea fatality rate (0.7 %) where they have tested much more for SARS-CoV-2.
Many Swedes have got the covid-19 desease from travelling in Italy and come home infected. That is not possible if only some 9100 in Italy were infected.