The True Story: Over 1.19 Million Cases in One Year

Dr Montien Kanasawat, Director-General of the Department of Disease Control, reported in March 2026 that 2025 saw 1,194,342 flu cases, a rate of 1,839.93 per 100,000, and 129 deaths.

The department forecast that total cases in 2026 could exceed the previous year, especially mid-year. Deputy Director-General Dr Direk Khampaen advised frequent handwashing, avoiding crowds, masks when coughing and resting when ill.

The Key Lesson: When a Million People Fall Ill, Production Lines Feel It

Factories in industrial estates have thousands of shift workers sharing buses, canteens and locker rooms. Points to watch are:

• Staff buses shared morning and evening
• Staff canteens where whole shifts eat at once
• Locker and changing rooms used every shift
• Fingerprint or card time clocks everyone touches
• Daily-paid workers who are sick but come in for fear of lost income

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 Factories and Industrial Estates

1. Sick workers come in for fear of lost income: likelihood high / impact high / level critical. Mitigation: sick-leave policy without pay deductions with a medical certificate. Owner: HR manager
2. Staff buses not disinfected: likelihood high / impact medium / level high. Mitigation: wipe seats and rails every trip and fog buses weekly. Owner: bus contractor
3. Time clocks not wiped: likelihood high / impact low / level medium. Mitigation: wipe at every shift change and provide sanitiser. Owner: safety officer
4. Damp locker and changing rooms: likelihood medium / impact medium / level medium. Mitigation: clean every shift and ozone-treat on a schedule. Owner: facilities team
5. No backups for critical roles: likelihood medium / impact high / level high. Mitigation: train backups for key positions. Owner: production manager

Ways to Reduce Flu Risk in Factories

1. Hold a vaccination day on site before mid-year
2. Have a sick-leave policy without pay deductions
3. Check for fever at the factory gate
4. Wipe time clocks at every shift change
5. Stagger meal times to reduce canteen crowding
6. Fog staff buses and canteens on a schedule
7. Ozone-treat locker and rest rooms on a schedule

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 flu cases did Thailand have in 2025? A: The DDC reported 1,194,342 cases and 129 deaths.

Q: Will 2026 be worse? A: The DDC forecast total cases could be higher than the previous year, especially mid-year and in winter.

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 factories get a tax invoice with 3% withholding tax? 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 true story from the DDC shows flu affects millions. Prepared factories protect workers' health and keep production lines running. Reduce the risk with the World Health Disinfection disinfection service for canteens, staff buses and factory common areas, and the ozone treatment service for locker rooms, changing rooms and staff rest rooms. To book, call 065-556-6294 or LINE @whd268.

Call 065-556-6294 | LINE: @whd268