The True Story: Thousands of Students Ill Before Major Exams

A report dated 14 October 2025, citing Malaysian media, said about 6,000 students nationwide had been infected with influenza across several states, and district health offices advised several schools to temporarily suspend in-person classes.

Dr Mohammad Ahmad, Director-General of Education, said the Ministry of Education was coordinating with the Ministry of Health and monitoring closely, while officials for the SPM exams starting on 3 November were told to prepare.

The Key Lesson: Exams Put Thousands in One Room

Thai exam venues, universities and language test centres put many candidates in closed rooms. Points to watch are:

• Closed air-conditioned exam halls with candidates side by side for hours
• Sick candidates who don't want to lose their exam
• Registration and ID scanning points with close queues
• Restrooms and water dispensers crowded at breaks
• Desks and chairs reused across exam sessions

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 Exam Venues and Universities

1. Sick candidates sit with everyone else: likelihood high / impact high / level critical. Mitigation: provide a separate exam room for symptomatic candidates. Owner: venue coordinator
2. Closed exam rooms for hours: likelihood high / impact medium / level high. Mitigation: ventilate between sessions and ozone-treat rooms before exam day. Owner: facilities team
3. Desks not wiped between sessions: likelihood high / impact low / level medium. Mitigation: wipe desks every session. Owner: housekeeper
4. Crowded registration: likelihood medium / impact medium / level medium. Mitigation: stagger times and provide sanitiser. Owner: registration staff
5. No spare masks: likelihood medium / impact low / level low. Mitigation: hand out masks at the entrance. Owner: venue coordinator

Ways to Reduce Flu Risk at Exam Venues

1. Provide a separate room for symptomatic candidates
2. Hand out masks at the entrance
3. Provide sanitiser at every registration point
4. Wipe desks and chairs every session
5. Ventilate between sessions
6. Fog the building before exam day
7. Ozone-treat exam rooms before exam day or after cases

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 Malaysian students had flu? A: An October 2025 report said about 6,000 nationwide, and several schools were advised to pause classes.

Q: What should a sick candidate do? A: Wear a mask, ask staff for a separate exam room, and see a doctor if fever is high or breathing is hard.

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 universities or test centres 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 true story from Malaysia shows flu really can strike at exam time. Prepared exam venues let everyone sit exams safely and fairly. Reduce the risk with the World Health Disinfection disinfection service for teaching buildings, halls and registration points, and the ozone treatment service for air-conditioned exam rooms. To book, call 065-556-6294 or LINE @whd268.

Call 065-556-6294 | LINE: @whd268