Victorian hospitals logged their highest September week of influenza-related emergency presentations in at least five years, as the Super-K subclade of H3N2 pushed a delayed 2026 flu season into spring.
Internal triage data reviewed by InfoHandle show several metropolitan EDs breaching four-hour targets on consecutive nights last week, with respiratory nurses redeployed from elective surgery wards. Chief Health Officer updates cited a 27 per cent jump in laboratory-confirmed cases nationally in the fortnight to 6 September, with Victoria bearing a disproportionate share.
Strain and severity
Monash University infectious diseases physician Allen Cheng described the season as "really strange," with peaks arriving three weeks later than the five-year average. The Super-K lineage drove a record 2025 season and appears to evade some prior-season immunity, though vaccines still blunt severe disease.
Hospital flow
Alfred Health said paediatric fevers and elderly pneumonia cases filled fast-track bays, while ambulances ramped at three outer-suburban hospitals. Elective procedures were cancelled only at one regional centre, but planners warned October school holidays could worsen staffing gaps if the wave persists.
Pharmacies reported a late rush for vaccinations, especially in Melbourne's west where GP bulk-billing slots are scarce. Health Minister Mark Butler urged anyone not yet vaccinated to book before Grand Final weekend crowds mix indoors.
COVID overlap
From 1 October, free COVID-19 vaccines narrow to higher-risk groups under National Immunisation Program rules, adding complexity for clinics juggling two respiratory campaigns. Clinicians said co-administration is safe but appointment systems must be updated to avoid billing errors.
Primary care pressure
Royal Australian College of General Practitioners Victorian chair said bulk-billing clinics are booking two weeks out for vaccine appointments, pushing some patients to pharmacies that cannot treat complications. Ambulance union officials asked the state government to fund extra paramedic shifts through October.
Nationally, more than 171,000 laboratory-confirmed influenza cases have been recorded in 2026, well below 2025's record but rising on a late trajectory that modellers did not forecast in winter planning briefs.