"The monitoring of hepatitis C in Norway was intensified from 1 January 2008. The notification criteria were changed so that all laboratory-confirmed cases of hepatitis C must now be reported to MSIS. Previously, only acute illness had to be reported, and this resulted in a very inadequate overview of the real incidence of the disease in the country. In 2013, 1,318 cases of hepatitis C (both acute and chronic cases) were reported.