South Australia sees delayed flu rise as immunity wanes, experts advise vaccination

Chief Public Health Officer Nicola Spurrier explained that South Australia is experiencing a postponed surge in influenza, a pattern she linked to waning community immunity after an unusual prior year that featured a summer wave driven by the "Super K" strain. Flu numbers have only recently started to tick upward, prompting health officials to monitor the situation closely. Adelaide GP Daniel Byrne reported that this year's flu incidence is roughly ten times lower than in typical winters, but highlighted a heavy workload from other illnesses, notably the common cold and respiratory syncytial virus, which has already accounted for thousands of cases.

He stressed that it is still timely to receive a flu vaccination, as the season may extend later into the year. Byrne also advocated for expanding eligibility for the free RSV vaccine, noting recent national provisions for pregnant women and older adults in other states. Both experts said ongoing surveillance will guide future public-health responses.