Last updated: 15 Nov 2026 | 8 Views |
The Independent Singapore reported 55 passengers and 15 crew with norovirus on Coral Princess during a month-long Singapore to California voyage, with cleaning and disinfection stepped up under its response plan. What should Thai vessel operators prepare?
The Independent Singapore reported in November 2024 that 55 passengers (3.02%) and 15 crew (1.65%) had norovirus on the 17 October to 17 November voyage.
The CDC reported the outbreak on 9 November, and the line stepped up cleaning and disinfection under its outbreak prevention and response plan, collecting stool samples for testing.
Ships calling at Thai ports such as Laem Chabang and Phuket carry passengers from many countries, while crews work long shifts in shared cabins. Sick crew disrupt the whole ship. A written response plan, isolating sick crew and cleaning crew cabins and messes keep voyages safe.

Highlights: German Airofog brand, 800 W motor, 15-30 micron droplets, 5 L tank, works with water-based disinfectants
Best for: Indoor fogging of medium to large buildings such as offices, schools and hospitals
Why it ranks here: Fogs crew cabins and messes after cleaning
See product and price - click here
Highlights: UK disinfectant that meets EN 14476 and is trusted by NHS England according to the product page, available for foggers and as a spray
Best for: Use with ULV foggers in hospitals, clinics, hotels and offices
Why it ranks here: Wipes stair rails, toilets and dining tables (check norovirus label)
See product and price - click here
Highlights: 30 wipes per pack, easy to carry for instant wiping of touch points
Best for: Wiping handles, desks and phones during the day
Why it ranks here: Use after soap handwashing
See product and price - click here
Highlights: German Airofog brand, 15-30 micron droplets, 5 L tank, only 3.1 kg for easy handheld use
Best for: Small to medium rooms, clinics, homes, guest rooms and vans
See product and price - click here
Highlights: 4.1 hp engine, 12 L chemical tank, reach up to 12 m, droplets under 30 microns
Best for: Large outdoor areas, warehouses, factories, farms and markets
See product and price - click here
Highlights: Longray 2680A-II, 800 W motor, 6 L tank, adjustable 5-50 micron droplets, about 5 kg according to supplier data
Best for: Shops, classrooms, guest rooms and daily fogging
See product and price - click here
Highlights: Uses steam above 100°C with no chemicals, ideal for fabrics and crevices sprays cannot reach
Best for: Mattresses, sofas, curtains, hotel beds and bedbug treatment
See product and price - click here
CHEMGENE brand illustration
Highlights: From the same family as HLD4H, recommended by WHD for homes, kindergartens and childcare centres according to its website
Best for: Homes, childcare centres, kindergartens and offices
See product and price - click here
Highlights: 50 L tank, mist reach up to 10 m, adjustable output
Best for: Communities, villages, estates and medium farms
See product and price - click here
Highlights: 18 hp engine, 75 L tank, mist reach up to 10 m
Best for: Large areas such as municipalities, industrial estates and big farms
See product and price - click here| Rank | Product | Type | Best for |
|---|---|---|---|
| 1 | AIROFOG U260 | Electric ULV fogger | Indoor fogging of medium to large buildings such as offices, schools and hospitals |
| 2 | CHEMGENE HLD4H | High-level medical-grade disinfectant | Use with ULV foggers in hospitals, clinics, hotels and offices |
| 3 | WELLGIENIC | Disinfecting wet wipes | Wiping handles, desks and phones during the day |
| 4 | AIROFOG U240 | Lightweight electric ULV fogger | Small to medium rooms, clinics, homes, guest rooms and vans |
| 5 | SOLO PORT 423 | Backpack mist blower | Large outdoor areas, warehouses, factories, farms and markets |
| 6 | ULV 2680A | Value electric ULV fogger | Shops, classrooms, guest rooms and daily fogging |
| 7 | STEMAR | Disinfecting steam cleaner | Mattresses, sofas, curtains, hotel beds and bedbug treatment |
| 8 | CHEMGENE HLD4L | Disinfectant for homes and children's areas | Homes, childcare centres, kindergartens and offices |
| 9 | AIROFOG UM2 | Truck-mounted fogger, 2 nozzles | Communities, villages, estates and medium farms |
| 10 | AIROFOG UM4 | Truck-mounted fogger, 4 nozzles | Large areas such as municipalities, industrial estates and big farms |
Before: Sick crew kept working in the galley and cases rose weekly.
After: Sick crew isolated, cover arranged and cabins cleaned daily.
If buying equipment is not practical or the area is too large, use the World Health Disinfection disinfection service or ozone treatment service. The team wears full protective equipment, chooses products to suit the germ and surface, and reports after the job.
Q: Why are long voyages riskier? A: People share space for weeks, giving the virus many rounds to spread, so a plan and continuous cleaning are needed.
Q: How long before the area can be used? A: After ULV fogging, areas are typically usable about 30 minutes later. For ozone treatment, no people or pets may be inside and the room must be ventilated before use.
Q: Can I get a tax invoice? A: Yes. Tax invoices are issued and 3% withholding tax is supported. Call 065-556-6294 or LINE @whd268.
Follow disease updates from Thailand's Department of Disease Control (hotline 1422) and the World Health Organization. Disinfection reduces germs in the environment and is not medical treatment; anyone with symptoms should see a doctor.
Coral Princess shows a ready plan contains outbreaks over long voyages. Operators who care for crew keep service running.
Keywords: norovirus, cruise ship, long voyage, crew, AIROFOGU260, germ elimination service