Is flu going around in Iceland?

Icelandic flu activity typically begins rising in late December, peaks between January and March, and fades into April. Iceland's small population means the season can be dominated by a single introduction or subtype, so individual weeks sometimes look noisier than in larger countries. The Directorate of Health (Embætti landlæknis) publishes weekly updates drawing on primary-care surveillance and laboratory data from Landspítali, the national university hospital in Reykjavík.

Landlæknir describes influenza activity in qualitative bands (low, moderate, high) based on primary-care consultations for influenza-like illness and laboratory positivity at Landspítali. These classifications appear in the weekly respiratory-virus bulletin and are reported to ECDC for the European Respiratory Virus Surveillance Summary (ERVISS). Because Iceland is small, multi-week trends are more reliable than any single week: individual data points carry more statistical noise than in larger countries.

Iceland's influenza surveillance combines primary-care reporting from health centres, laboratory testing at Landspítali (University Hospital) which acts as the national reference centre, and hospital notifications of severe cases. Weekly bulletins integrate these indicators and feed ECDC ERVISS, which places Iceland's trajectory alongside the other Nordic countries. The small population makes cross-country comparison an important context for interpreting trends.

Iceland offers subsidised or free seasonal influenza vaccination to priority groups defined by Landlæknir, including adults aged 60 and above, pregnant women, people with chronic illnesses, residents of long-term-care facilities, and healthcare workers. Vaccines are delivered through health centres and primary-care practices. Landlæknir reports vaccine-uptake estimates alongside the weekly surveillance bulletin.

Because Iceland reports into ECDC ERVISS with harmonised indicators, its weekly flu classification is directly comparable with Norway, Denmark, Ireland, and the UK. Iceland's Atlantic climate and Nordic health-service structure mean its peak windows often resemble those of other Nordic countries, though the small population amplifies random week-to-week variation. Reading multi-week trends rather than isolated points is the most reliable approach.