World News: South Korea Warns at Back-to-School as Teens Aged 1318 Had a 27.3% Flu Detection Rate Last Season; Antivirals Work Best Within 48 Hours. Lessons for School Gyms
Last updated: 9 Nov 2026 | 8 Views |
World News: South Korea Warns at Back-to-School as Teens Aged 13–18 Had a 27.3% Flu Detection Rate Last Season; Antivirals Work Best Within 48 Hours. Lessons for School Gyms
From South Korea: in late August 2026, ahead of the new term, Korean authorities warned that teens aged 13–18 had a 27.3% flu detection rate last season and that antivirals work best when started within 48 hours. Thai school gyms and PE rooms, where students exercise in close contact, should prepare.
The True Story: Nearly a Third of Teens Tested Positive
Korean outlet Digital Daily reported on 29 August 2026 that, with the new term starting, authorities warned about flu: last season teens aged 13–18 had a 27.3% flu detection rate.
The report said antivirals such as Tamiflu work best when started within the first 48 hours of symptoms, so people should see a doctor quickly for a sudden high fever and not push through school or sport while ill.
The Key Lesson: Sweat, Heavy Breathing and Shared Equipment
Thai school gyms and PE rooms are used by many classes all day. Points to watch are:
- Balls and equipment everyone handles
- Locker rooms damp and crowded
- School athletes training hard while ill
- Water bottles shared within teams
- Gym mats not wiped
How Flu Spreads
According to the World Health Organization, seasonal influenza spreads easily where people gather, such as schools and nursing homes. It spreads through droplets when people cough or sneeze, and through hands that touch contaminated surfaces and then the eyes, nose or mouth. Most people recover within a week, but young children, older adults, pregnant women and people with chronic illness are at risk of severe disease. Influenza is an enveloped virus, which suitable disinfectants can inactivate.
Risk Register for School Gyms and PE Rooms
- Sick athletes still train: likelihood high / impact high / level critical. Mitigation: stop training with fever and see a doctor within 48 hours. Owner: sports coach
- Shared water bottles: likelihood high / impact medium / level high. Mitigation: personal bottles for every athlete. Owner: sports coach
- Damp locker rooms: likelihood high / impact medium / level high. Mitigation: air and clean daily. Owner: caretaker
- Equipment and mats not wiped: likelihood medium / impact medium / level medium. Mitigation: wipe after each period. Owner: PE teacher
- Gym not disinfected during outbreaks: likelihood medium / impact high / level high. Mitigation: fog and ozone-treat locker rooms. Owner: director
Ways to Reduce Flu Risk in School Gyms
- Excuse sick students from PE and refer early
- Use personal water bottles
- Wipe balls and mats after each period
- Wash hands after PE
- Air locker rooms
- Vaccinate school athletes
- Fog and ozone-treat locker rooms and gyms
How ULV Disinfection Fogging Helps
The World Health Disinfection disinfection service uses ULV fogging machines that turn the disinfectant into a fine mist. It settles across the whole area, including corners, curtains, upholstery and surfaces that hand wiping cannot reach.
- Whole-area coverage without relying on wiping spot by spot
- Quick return to use, typically about 30 minutes after fogging
- Uses Chemgene HLD4H, which meets EN 14476 for virucidal activity according to the product page
- The team wears full protective equipment, so owners and staff do not take the risk themselves
- Report and photos after the job for customers, management or authorities
- Tax invoice with 3% withholding tax for companies and agencies
Ozone Treatment for Closed Rooms and Stuffy Spaces
The World Health Disinfection ozone treatment service uses machines that generate ozone gas from oxygen in the air. It suits closed rooms such as meeting rooms, bedrooms, classrooms, sick bays and vans, helping reduce germs in the air and on surfaces and removing stale odours. Ozone breaks back down into oxygen after treatment, leaving no residue.
- Works alongside disinfection fogging: spray or wipe surfaces first, then use ozone for the air and corners of closed rooms
- No people or pets in the room during treatment: the team seals the room and runs a timer
- Ventilate after treatment before normal use resumes
- Machines tested by Intertek, according to WHD's service page
- Ideal after someone has been ill, such as recovered patients' rooms, shared bedrooms and shuttle vans
Before and After
Frequently Asked Questions
Q: What was the flu detection rate among Korean teens? A: Ages 13–18 had a 27.3% detection rate last season, per the 29 August 2026 report.
Q: When should antivirals start? A: The report said they work best within the first 48 hours of symptoms, as prescribed by a doctor.
Q: Does the fogging disinfectant work on flu? A: The team uses Chemgene HLD4H, which meets EN 14476 for virucidal activity according to the product page, and influenza is an enveloped virus that suitable disinfectants can inactivate. Fogging does not replace vaccination or handwashing.
Q: Can I enter the room right after ozone treatment? A: No one should be in the room during treatment. Ventilate afterwards before normal use; the team will advise the right time for the room size.
Q: Can schools get a tax invoice? A: Yes. Tax invoices are issued and 3% withholding tax is supported. Call 065-556-6294 or LINE @whd268.
Related Links and Sources
Prevent Flu with Disinfection Fogging and Ozone Treatment
The real news from Korea shows teens catch flu often. Clean gyms and coaches who rest sick players protect the whole team. Reduce the risk with the World Health Disinfection disinfection service for gyms, indoor courts and PE rooms, and the ozone treatment service for locker rooms and sports equipment stores. To book, call 065-556-6294 or LINE @whd268.
Keywords: teen flu, Korea flu, school gym, PE room, gym disinfection, locker room ozone treatment
