The 2025-2026 Swiss influenza wave threatens to be one of the most severe on record, according to the health authorities. +Get the most important news from Switzerland in your inbox Despite infection rates falling back last week, the peak of the flu wave has not yet been reached, according to the Federal Office of Public Health (FOPH). Last week, 33.5 laboratory-confirmed cases of influenza per 100,000 inhabitants were reported, 4.6% fewer than the previous week. However, this is due to delays in reporting cases because of the festive season, a spokesperson for the FOPH told the Keystone-ATS press agency. After falling over the festive period, the number of outpatient consultations for acute respiratory infections is once again on the rise. New subtypes detected According to the FOPH, the main influenza viruses currently detected in Switzerland are the "A(H3N2)" and "A(H1N1)pdm09" subtypes. In addition, a new subclade (specific genetic subgroup) of the H3N2 subtype is also ...
