Last updated: 5 Oct 2026 | 4 Views |
Nakhon Pathom sits right on the line between countryside and city. On one side are fruit orchards, rice fields and old communities along the Tha Chin River, a stretch locals call the Nakhon Chai Si River. On the other are housing estates, townhouses and condominiums that have spread outward from Bangkok along the main highways. So when the Nakhon Pathom flood of 2026 (B.E. 2569) arrived, the people affected included both farming families and commuter families who drive into Bangkok every day. This article retells the real case as reported by government agencies, then looks at which germs typically follow floodwater into suburban homes such as townhouses and estate houses, and sets out a room-by-room plan to disinfect after the water recedes using the medical-grade disinfectant CHEMGENE HLD4H.
According to a report by Thailand's Department of Disaster Prevention and Mitigation (DDPM), published by Bangkokbiznews, as of 2 October 2026 flooding affected 7 districts of Nakhon Pathom: Mueang Nakhon Pathom, Phutthamonthon, Kamphaeng Saen, Nakhon Chai Si, Sam Phran, Bang Len and Don Tum. A total of 43,687 households were affected, and the report stated that water levels were still rising.
The figure of 43,687 households says a lot about the character of Nakhon Pathom. Several districts on the list, such as Phutthamonthon, Sam Phran and Mueang, are densely built up with housing estates, townhouses, shophouses and long-established communities. When water enters areas like these, a large number of homes are affected at the same moment. Meanwhile districts such as Kamphaeng Saen, Bang Len, Don Tum and Nakhon Chai Si have extensive rice fields, vegetable plots and orchards, so the damage hits both homes and livelihoods.
Nationally, according to the DDPM on 2 October 2026, flooding had hit 31 provinces plus Bangkok, affecting 1,245,581 households and 3,535,206 people, caused by heavy to very heavy rain and runoff from the north.
Note: the number of people affected changes every day. The information in this article is based on the DDPM report of 2 October 2026. Please follow the latest announcements from Nakhon Pathom province and the DDPM closely.
This is an illustrative example to help picture the situation. It is not a real person or a specific event from the news. Imagine a couple in their early thirties who bought a two-storey townhouse in a housing estate near Phutthamonthon because it was affordable and the commute into Bangkok was easy. They have an eighteen-month-old son who has just started walking, and a mixed-breed dog that sleeps in the ground-floor living room.
When the water reached the estate, the level in their lane crept up until it flooded the car port and seeped into the ground floor. They managed to carry the fridge, the TV and the child's toys upstairs, but the fabric sofa, the shoe cabinet, the baby's play mat and the particleboard kitchen cabinets sat in water for several days. The water that came in was not just rainwater. It had flowed through the estate's drains, its wastewater sumps, and streets where rubbish had piled up.
When the water receded, the couple had two main worries. The first was their son, who loves to crawl and put things in his mouth. The second was the dog, which had been wading through the lane for days and might carry germs back into the house. Their questions: how do we clean so the floor is safe enough for our child to crawl on, and which product can we use that will not harm our pet when used as directed?
Estate houses and townhouses differ from raised rural houses. The ground floor is usually the main living space, containing the living room, kitchen and a bathroom. Even a few tens of centimetres of water affects almost the whole of daily life. Several other factors matter too.
Cars are another overlooked issue. Many estate households park in a car port at the front of the house, and vehicles that sat in floodwater carry mud and contaminated water in their footwells, boots and wheel arches. Before a car is used to take children to school or an older relative to hospital, it is worth removing wet floor mats, washing out silt, and wiping the steering wheel, door handles, seat-belt buckles and child seats. Fabric car seats that were soaked may need professional cleaning. The same principle applies as in the house: clean first, dry thoroughly, then disinfect the hard surfaces people touch most often.
WHO and CDC note that floodwater may contain sewage, chemicals and disease-causing organisms. For people living in townhouses, the simplest way to understand the risk is to look at each room and ask which germs are likely to have settled where.
The front of the house is where water pools first and where rats escaping the flood pass through. Leptospira bacteria shed in rat urine survive in standing water and wet mud and enter the body through wounds or skin softened by long immersion. The Department of Disease Control advises wearing boots, and seeing a doctor promptly for sudden high fever, headache and muscle pain, especially in the calves, after wading. Pets that wade are also at risk; consult a vet if your dog shows unusual symptoms.
Water backing up from drains and sumps carries intestinal bacteria from people and animals. When these settle on counters, sinks, chopping boards and dish cabinets, they can contaminate food and cause diarrhoea, stomach pain, vomiting and fever. Young children become dehydrated faster than adults, so extra care is needed.
Norovirus and rotavirus cause vomiting and diarrhoea, while hand, foot and mouth disease is common in young children. These spread through hands and contaminated surfaces, which makes living-room floors, play mats and plastic toys priority areas.
During floods many families stay with relatives or in temporary accommodation and come home carrying influenza or RSV on their hands. Door handles, light switches, stair rails and TV remotes are shared touch points that should be disinfected repeatedly.
Absorbent materials make excellent mould habitats. When they dry slowly a musty smell follows, and spores can trigger allergies and asthma. Gypsum walls or particleboard cabinets that have swollen badly may need to be removed and replaced, because their insides cannot be cleaned.
For working families in housing estates, a flood hits home life and working life together. Many take leave to clean their houses; some have to rent temporary accommodation while repairs are done. Replacing furniture, kitchen cabinets and appliances is expensive. If someone in the household falls ill after the water recedes, the burden grows further with medical costs and time off work to care for each other.
Farming families in Kamphaeng Saen, Bang Len, Don Tum and Nakhon Chai Si carry damage to both their homes and their produce. Restaurants and market shops have to close temporarily, and when they reopen they must clean thoroughly to win back customer confidence. Doing the recovery properly and in order the first time saves more money and time than fixing things again and again.
There is also a quieter cost that is easy to overlook: stress. Parents of small children often describe the weeks after a flood as a period of constant low-level anxiety about whether the house is really clean. Every cough or loose stool raises the question of whether something was missed. A clear, documented routine, where each room has been washed, dried and disinfected in a known order, does more than reduce germs. It gives the family a reason to trust their own home again, and that confidence matters for getting back to normal life.
Washing with clean water and detergent is the first step and must never be skipped, because it removes mud, grease and organic matter that shields germs. But in a home with young children and pets, there are limits worth knowing.
According to the product information, CHEMGENE HLD4H is a medical-grade high-level disinfectant made in England, used in hospitals, clinics, laboratories, schools, offices, airports, homes, and childcare and elderly-care settings.
The product page states it kills within 1 minute, shows 99.85% efficacy against COVID-19, and provides residual surface protection for up to 14 days.
According to the product information, CHEMGENE HLD4H is stated to be safe for people and pets when used as directed, and is non-corrosive to stainless steel, aluminium, rubber, plastic and fibreglass. Those match the materials in modern homes: stainless steel sinks, aluminium door and window frames, plastic toys, pet bowls and fibreglass bathtubs. It is biodegradable and dilutes at 1:30, 1:50, 1:60, 1:100 and up to 1:200 depending on the job.
The product information lists tests and approvals from Mahidol University, NHS England, ISO 9001:2015, ISO 13485, SGS, Intertek, CE and EN 13727, EN 14348, EN 13624 and EN 14476. See the certificates page.
One rule for every room: remove the mud and clean first, then apply CHEMGENE HLD4H to clean surfaces at the dilution and contact time on the label. Wear gloves, boots and a mask throughout, open windows for ventilation, and keep children and pets out of the area until you finish.
Switch off the main breaker and have an electrician check any sockets and wiring that were under water before using them. Photograph the damage for your records, then start cleaning.
Open windows and use fans or a dehumidifier to dry the house as quickly as possible. Re-disinfect high-touch points at intervals, especially after people or pets come in from lanes that still have standing water.
The product information states it is safe for pets when used as directed. Keep animals out of the area while spraying and wait until surfaces are dry before letting them back in.
After the floor has been washed, disinfected for the full contact time on the label, and is completely dry. Ventilate well and follow the label's guidance for surfaces children touch directly.
If gypsum board has soaked long enough to swell or soften, consider removing the damaged sections, because the moisture inside cannot be cleaned. Walls that are still firm can be washed, dried and then disinfected on the surface.
Yes. Always remove mud and dirt first. Disinfectants work best on clean surfaces.
Yes, after common areas have been washed. Ask the team about the right quantity for your area, or read about the disinfection service.
See a doctor promptly and mention the wading. A disinfectant is for surfaces; it is not a medicine.
Order through the product page on the website, or call 065-556-6294 or LINE @whd268. Please confirm delivery details directly with the team.
Wash the mud out first, then disinfect room by room with a medical-grade product suitable for homes with children and pets when used as directed.
Call 065-556-6294 · LINE @whd268 · worldhealthdisinfection@gmail.com
Disclaimer: disinfectants help reduce the risk of infection from surfaces during recovery. They do not prevent flooding and are not medical treatment. Anyone who feels unwell should see a doctor, and sick pets should see a vet.
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