Commonground
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Flu Hits Korea a Month Early, Hospitalizations Jump Tenfold
Published 2026.09.14.Excerpt:
Twice the Epidemic Threshold, 10 Times the Hospitalizations — Ages 7-12 Hit Hardest
In the 36th week of the year, or Aug. 30 to Sept. 5, the first week of the 2026-2027 season, 25.3 out of every 1,000 outpatients at sentinel surveillance clinics showed influenza-like symptoms, according to the Korea Disease Control and Prevention Agency on the 14th. That is roughly twice this season's epidemic threshold of 12.9.
The agency issued an influenza epidemic advisory as of midnight on the 11th. That is more than a month earlier than last season, when the advisory came on Oct. 17.
The spread is most pronounced among children and adolescents in group settings such as schools. Among those aged 7 to 12, the rate of influenza-like illness climbed to 75.1 per 1,000 outpatients... Hospitalizations, an indicator of severe cases, also rose steeply. Over the same period, hospital-level medical institutions reported 300 influenza inpatients, more than 10 times the 23 recorded a year earlier.
... https://en.sedaily.com/culture/2026/09/14/flu-hits-korea-a-month-early-hospitalizations-jump-tenfold