Health · Public Health & Disease · 2 hrs ago
Tokyo Reports Death of Child Under 5 From Influenza Encephalopathy
Tokyo reported that a child under 5 died from influenza encephalopathy, a serious brain condition linked to influenza.
The city said three cases have been confirmed since the flu season began in August, including the fatal case.
Influenza encephalopathy can cause seizures, impaired awareness and unusual behavior, and severe cases can lead to lasting disabilities or death.
Flu spread began more than a month earlier than last year in Tokyo, and the city says it is continuing.
Children and older adults face a higher risk of severe illness; among people hospitalized with influenza this season, three in 10 were under 10 and half were 65 or older.
Tokyo urges handwashing, ventilation and cough etiquette, and advises people to discuss vaccination with their regular doctor as flu spread is expected to continue.
Tokyo reported that a child under five died from influenza encephalopathy.
The death occurred during the week of October 5 to 11, according to the Tokyo Metropolitan Government.
Three influenza encephalopathy cases have been confirmed in Tokyo since the influenza season began in August.
The government urged residents to take steps to prevent infection and consider vaccination after consulting a doctor.
Tokyo’s influenza season began more than a month earlier than last year, and cases were still spreading.
- Who
- A child under five in Tokyo died.
- What
- The child died from influenza encephalopathy.
- When
- The death was confirmed for the week of October 5 to 11; Tokyo announced it on October 22, 2026.
- Where
- Tokyo, Japan.
- Why
- The child died from influenza encephalopathy; the specific circumstances are not stated.
This story does not have two clearly opposing sides.
Tokyo’s influenza season began, and the government began counting influenza encephalopathy cases.
Influenza cases in Tokyo exceeded the alert threshold of 10.0 people.
The death of one child under five from influenza encephalopathy was confirmed.
Tokyo announced the death and urged people to take steps to prevent infection.
- Death
- One child under five
- Cause
- Influenza encephalopathy
- Cases in Tokyo since August
- 3 influenza encephalopathy patients
- Death-confirmation week
- October 5–11, 2026
- Alert threshold
- 10.0 people
2 sources
What people are saying
Children and older people are at relatively high risk of becoming seriously ill, and caution is needed as the spread of infection is expected to continue. In addition to thorough handwashing, ventilation and cough etiquette, please consider vaccination after consulting your family doctor.