The True Story: 17 Provinces at High Levels

China Daily reported on 4 December 2025 that flu in China was still rising and nearing its peak, with 17 provincial regions at high activity and flu-like illness outbreaks rising to 1,541 in the week from 24 November, up from 1,234, with H3N2 over 95% of infections.

Wang Dayan, director of the Chinese National Influenza Center, warned measures must not be relaxed for six to eight weeks, while Peng Zhibin of China CDC called for stronger health monitoring, environmental cleaning and ventilation in schools, nurseries and elderly care homes, and for sick students and teachers to stay home.

The Key Lesson: Chinese Experts Are Clear: Clean and Ventilate

Thai local child development centres care for many 2–5 year olds in one room. Points to watch are:

• Shared classrooms where children play on the floor
• Blankets and pillows stored together
• Cups kept together on one shelf
• Rooms with fans or AC and stale air
• Few carers for many children

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 Child Development Centres

1. Classrooms not ventilated: likelihood high / impact medium / level high. Mitigation: open windows morning and afternoon. Owner: carer
2. Blankets and pillows stored together: likelihood high / impact medium / level high. Mitigation: separate bags per child, washed weekly. Owner: carer
3. Cups swapped: likelihood high / impact medium / level high. Mitigation: label every cup. Owner: carer
4. Sick children attend: likelihood high / impact high / level critical. Mitigation: morning health checks and inform parents. Owner: centre head
5. Rooms not deep-cleaned: likelihood medium / impact high / level high. Mitigation: fog and ozone-treat rooms on days off. Owner: local authority

Ways to Reduce Flu Risk in Child Development Centres

1. Check children's health every morning
2. Open windows twice a day
3. Separate cups and blankets per child
4. Clean floors daily
5. Have sick carers rest
6. Inform parents about vaccines
7. Fog and ozone-treat classrooms on days off

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: How many Chinese provinces had high flu? A: 17, with flu-like outbreaks rising to 1,541 in one week.

Q: What did Chinese experts advise for nurseries? A: Stronger health monitoring, environmental cleaning and ventilation.

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 local authorities 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

• World Health Disinfection disinfection service
• World Health Disinfection ozone treatment service
• Chemgene HLD4H disinfectant and price
• Influenza information from Thailand's Department of Disease Control, hotline 1422
• WHO seasonal influenza fact sheet

Prevent Flu with Disinfection Fogging and Ozone Treatment

The real news from China says plainly that cleaning and ventilation are the heart of prevention. Centres that do both earn parents' trust. Reduce the risk with the World Health Disinfection disinfection service for classrooms, toilets and dining areas, and the ozone treatment service for nap rooms and blanket stores. To book, call 065-556-6294 or LINE @whd268.

Call 065-556-6294 | LINE: @whd268