Uruguay Detects H3N2 Subclade K in Returning Travellers: Lessons for Tourist Hotels
Last updated: 9 Nov 2026 | 7 Views |
Uruguay Detects H3N2 Subclade K in Returning Travellers: Lessons for Tourist Hotels
New flu strains cross continents with passengers. Uruguay detected one in travellers, so hotels in Thailand that host guests from around the world must be ready.
The True Story: Uruguay Finds Subclade K in Travellers
El Observador reported on 22 January 2026 that Uruguay's Ministry of Public Health (MSP) had detected H3N2 subclade K influenza in people who had returned from abroad. The strain had earlier put Europe on alert.
The ministry said it was preparing its Winter Plan (Plan Invierno) for the coming flu season.
The Key Lesson: Germs Travel With Guests
Hotels in Bangkok, Phuket and Pattaya host guests from many continents every day; one room may host people from different countries in a single week.
- New strains arrive through travel, and hotels are the first place guests stay
- Rooms need consistent cleaning between guests
- Lobby touch points such as lift buttons, counters and doors
- Front desk staff meet many guests and should be vaccinated
- Have a plan for sick guests, covering medical referral and room cleaning
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 Hotels Serving International Guests
- Travellers bringing illness into the hotel: likelihood medium / impact high / level high. Mitigation: Sick-guest care and special room cleaning. Owner: Rooms division manager
- Contaminated lift buttons and counters: likelihood high / impact medium / level high. Mitigation: Hourly disinfection at busy check-in times. Owner: Housekeeping
- Front desk staff infected: likelihood medium / impact medium / level medium. Mitigation: Vaccination and masks during outbreaks. Owner: HR
- Germs left in rooms after sick guests: likelihood medium / impact high / level high. Mitigation: Fog and ozone-treat before reselling the room. Owner: Executive housekeeper
- Crowded breakfast rooms: likelihood high / impact low / level medium. Mitigation: More wiping of tables and buffet utensils. Owner: Restaurant manager
7 Steps to Handle Flu Brought by International Guests
- Follow news of new strains from guests' home countries
- Place hand gel and masks in the lobby and lifts
- Wipe lift buttons, counters and door handles every hour
- Use a separate procedure for sick guests' rooms, with protective equipment
- Fog and ozone-treat rooms after sick guests before reselling
- Fog the lobby and restaurants at quiet times
- Keep a list of hospitals serving foreigners with interpreters
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 should be done with a room after a sick guest? A: Clean surfaces, fog, then ozone-treat the closed room and ventilate before the next guest.
Q: How long must the lobby close for fogging? A: Areas are typically usable about 30 minutes after fogging.
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 hotel 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
Uruguay shows new strains arrive through travellers, making hotels a key line of defence. Reduce the risk with the World Health Disinfection disinfection service for lobbies, restaurants and common areas, and the ozone treatment service for rooms after sick guests. To book, call 065-556-6294 or LINE @whd268.
Keywords: influenza, H3N2, subclade K, hotel, tourists, hotel disinfection
