The True Story: Brentwood School Closes 2 Days to Stop Flu

On 22 October 2026, WRDW reported that Brentwood School, a private school in Sandersville, Georgia, in the United States, would close for two days, Thursday and Friday, because of flu cases and high absences among students and staff.

The school used the closure to deep clean and disinfect the building before reopening the following Monday, breaking the chain of transmission while many people were ill at once.

The Key Lesson: A Short Closure, a Thorough Clean

Private schools in Thailand keep students together all day, sharing classrooms, school vans and canteens. The lessons are:

• Track daily absences as the first warning before a school-wide outbreak
• Decide quickly: a 1-2 day closure with cleaning beats a long, drawn-out outbreak
• Clean the whole building, not only the rooms with sick children
• Communicate clearly with parents about why, what is done and when school reopens
• Keep sick children at home until they are well

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 Private Schools

1. Students falling ill across several classes: likelihood high / impact high / level critical. Mitigation: Morning screening, separate feverish children and fog classrooms. Owner: Principal
2. Teachers ill at the same time: likelihood medium / impact high / level high. Mitigation: Backup teacher roster and encourage vaccination. Owner: Academic office
3. Germs on desks, handles and rails: likelihood high / impact medium / level high. Mitigation: Disinfect shared touch points several times a day. Owner: Facilities
4. School vans spreading infection: likelihood medium / impact medium / level medium. Mitigation: Ventilate and ozone-treat vans after runs. Owner: Transport
5. Worried parents moving children: likelihood low / impact high / level medium. Mitigation: Share measures and the cleaning report. Owner: Communications

7 Steps to Manage Flu in Private Schools

1. Set a watch threshold such as unusual absence rates per class
2. Screen every morning for fever and cough
3. Use a sick bay for feverish children and call parents to collect them
4. Wipe shared touch points daily: handles, desks, rails and lift buttons
5. Fog the whole building when several cases appear, using weekends or closure days
6. Ozone-treat closed rooms: sick bay, music room and school vans
7. Update parents with clear return-to-school criteria

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: When should a school close? A: Follow local health authority advice. In the Georgia example the school closed for two days when illness and absences were high.

Q: When can rooms be used after fogging? A: After ULV fogging, areas are typically usable about 30 minutes later.

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 a school 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

Brentwood School shows that a short closure with a whole-building clean is a practical option. Reduce the risk with the World Health Disinfection disinfection service for classrooms, canteens and corridors, and the ozone treatment service for sick bays and school vans. To book, call 065-556-6294 or LINE @whd268.

Call 065-556-6294 | LINE: @whd268