Japan saw its biggest flu outbreak in the last week of December in more than 25 years, health authorities said Thursday.
The latest analysis by the health ministry of data collected from 5,000 health clinics showed that 317,812 people were diagnosed with influenza between Dec. 23 and 29.
The figure is more than three times the 104,612 cases recorded in the same period in 2023, the health ministry said, and is the largest for any week since records began in 1999. Flu cases typically spike in winter in Japan and elsewhere, but some countries have seen big jumps in cases recently, including France and Britain.