The 2026 flood in Tha Kham, Aranyaprathet: what the news reported

According to a Siam Rath report dated 30 September 2026, the flood situation in Tha Kham subdistrict and along Suwannasorn Road (Highway 33) in Aranyaprathet district, Sa Kaeo province, had started to ease. Water was receding and the main road was usable again. Some stretches inside town still had around 10 centimetres of water, and some sections of the outbound lanes still had around 30 centimetres. Low-lying communities, however, remained under deep water.

The same report gave a province-wide picture: 12,363 households in Sa Kaeo had been affected, and 1,002 people were staying in evacuation shelters. These figures applied on the day of the report and can change daily, so please follow the latest local announcements as well.

Nationally, a Department of Disaster Prevention and Mitigation (DDPM) update at 06:00 on 5 October 2026, published by Daily News, listed 26 provinces plus Bangkok as affected, a total of 1,270,151 households.

What makes Tha Kham different is the "dry road, flooded neighbourhood" picture: ankle-deep water on Suwannasorn Road, while lower pockets sit in warm, still water for days, which sewage, soil and rodent-borne germs like. And with many people in shelters, there is a second risk: germs that pass between people living close together and travel home with them.

Flood spots in Tha Kham, Aranyaprathet, from the news report, and risk spots at home

The news report named these areas and water levels:

• Tha Kham subdistrict, Aranyaprathet district: water starting to recede as of 30 September 2026
• Suwannasorn Road (Highway 33): main road usable again, with about 10 cm of water on some stretches in town
• Some outbound sections: about 30 cm of water remaining
• Low-lying communities: still deeply flooded

The report did not name individual villages, lanes or depths, so we add nothing beyond it. For homes in low pockets where water lingers, these are the places to check and clean with extra care:

• Ground floors and walls above the water line, where damp climbs
• Bathrooms, toilets and septic tank areas, where sewage can back up
• Kitchens, dishes and fridges that touched the water
• Mattresses, blankets and clothes left behind during evacuation
• Under raised floors, animal pens and storerooms, where rats shelter
• Shops and stalls along Suwannasorn Road, hit by water and traffic-splashed mud
• Bags and mats from the shelter, to wash before bringing inside

A typical scenario: moving-back day from the shelter

The example below is an illustrative scenario based on situations that commonly follow floods. It does not describe any specific family.

Somporn, in her fifties, lives in a single-storey house in a low-lying part of Tha Kham with her husband, daughter and three-year-old grandson. When the water rose, they moved into a shelter where many people shared bathrooms and a kitchen. Late in the week the grandson developed a runny nose and mild cough, like several other children there.

When Suwannasorn Road reopened, her husband rode home. The main road was nearly dry, but in the neighbourhood the water was almost knee-high and he waded in wearing flip-flops. Inside: a musty, drain-like smell, black spots along the wall, a waterlogged mattress and a brown film around the toilet.

What first, when to bring the grandson back, which germs matter most, and is cleaning alone enough? This post-flood germ ranking for Tha Kham, Aranyaprathet gives households a clear order of priorities.

How we built the post-flood germ ranking for Tha Kham, Aranyaprathet (an editorial ranking)

This is WHD's editorial ranking. It is not an official ranking by any government agency and it is not based on local case data. We use no case counts or percentages without a source. We ordered the list using five criteria:

1. How often the germ appears in flood guidance from the World Health Organization (WHO), the US Centers for Disease Control and Prevention (CDC) and Thailand's Department of Disease Control.
2. Severity if an infection is not properly cared for.
3. Who is at risk in this setting: people wading home to check houses, young children and older adults just leaving shelters, and roadside traders.
4. Persistence in the environment, described qualitatively: how much the germ likes mud, still water or damp surfaces.
5. Ease of spread when families crowd back into homes that are still damp.

A germ near the top is the one to plan for first, not necessarily the most dangerous in every case. If anyone feels unwell, see a doctor without waiting for the house to be finished.

Nine germs to watch in low-lying homes in Tha Kham, Aranyaprathet

No. 1: E. coli and sewage bacteria (Escherichia coli)

Why it ranks first. When water stands for days, septic tanks, drains and toilets are often submerged, and sewage mixes with the water inside homes. E. coli is the standard indicator of faecal contamination. WHO and CDC guidance agree that floodwater should always be treated as contaminated with sewage.

Where it hides. Bathroom and kitchen floors, around toilets, dishes, toys and grout; leftover mud acts as a reservoir even once dry.

Symptoms and who is at risk. Diarrhoea, stomach cramps and nausea; some strains cause bloody diarrhoea. Young children, older adults and people with chronic illness can become dehydrated quickly.

Prevention. Discard food that touched floodwater, wash dishes and hands with soap, and wear gloves and boots.

How cleaning and spraying help. Mud must always be scraped out and surfaces scrubbed first. Spraying then reaches the large areas that scrubbing misses. E. coli belongs to the bacteria group, which the CHEMGENE HLD4H product information says it covers in general. If you need test data for this specific organism, ask WHD.

No. 2: Leptospira, the cause of leptospirosis

Why it ranks second. People wading knee-deep into low-lying neighbourhoods to check on their homes is the exact picture the Department of Disease Control warns about every year. Leptospira comes from the urine of rats and other animals and enters through cuts, scrapes or skin softened by long soaking.

Where it hides. Standing water around houses, wet mud, under raised floors, storerooms, animal pens and piles of belongings where rats climb to escape the water.

Symptoms and who is at risk. Sudden high fever, headache, muscle pain especially in the calves, and red eyes. People who wade often or have foot wounds are most at risk. Anyone with a fever after wading should see a doctor promptly and mention the wading.

Prevention. Wear boots, cover wounds, avoid long soaking, shower after wading, and clear rubbish that attracts rats.

How cleaning and spraying help. Spraying does not replace boots or a doctor's visit, but it treats surfaces that may be contaminated once the mud is gone. Leptospira is a bacterium, in the group the product says it covers, but we have no organism-specific test result to cite. Ask WHD if you would like the data.

No. 3: Norovirus and rotavirus, stomach viruses that follow families home from shared shelters

Why it ranks third. With many people in shelters, stomach viruses are a clear risk in Tha Kham's setting. They spread very easily where bathrooms and kitchens are shared, and when families move home the viruses can come along on hands, clothes and belongings.

Where it hides. Door handles, taps, toilet lids, dishes, toys and shared cloths. Norovirus is known for lasting on surfaces and resisting quick, light cleaning.

Symptoms and who is at risk. Sudden vomiting, diarrhoea and stomach pain. Rotavirus is common in young children. Both can dehydrate children and older adults quickly.

Prevention. Wash hands with soap, separate a sick person's bathroom if possible, and clean high-touch spots daily.

How cleaning and spraying help. The CHEMGENE HLD4H product information lists norovirus among the organisms it covers. Rotavirus falls in the virus group the product names, but please ask WHD for organism-specific data. Spraying suits homes where people have just returned from shelters and there are many shared touch points.

No. 4: Mold in homes where water stands for days (Aspergillus, Penicillium, Cladosporium, Stachybotrys)

Why it ranks fourth. Low-lying homes that stay flooded after the road dries remain wet far longer than most. WHO and CDC advise cleaning and drying within 24 to 48 hours to limit mold, which these homes simply cannot do, so mold has time to establish itself.

Where it hides. Plaster walls, damp ceilings, wooden doors, the backs of cupboards, mattresses, pillows, curtains and cardboard boxes.

Symptoms and who is at risk. Stuffy nose, cough, sneezing, eye and skin irritation, and asthma flare-ups. People with allergies, children, older adults and anyone with weak immunity are more affected.

Prevention. Discard porous items that soaked for a long time, open windows, use fans to dry, wear a mask and gloves when handling moldy things, and never paint over damp walls.

How cleaning and spraying help. The product information says it covers fungi, but spraying works best once visible mold has been scraped off and walls are drying. For musty air, residential ozone disinfection is a complementary option.

No. 5: Respiratory viruses picked up in shared shelters (influenza, RSV, COVID-19)

Why it ranks fifth. This is where Tha Kham's ranking differs from many places. With around a thousand people in shelters across the province, respiratory viruses have a chance to spread during the shared stay and follow family members home.

Where it hides. Closed rooms, handles, phones and shelter bedding.

Symptoms and who is at risk. Fever, cough, sore throat and runny nose. RSV can be serious in babies and toddlers; influenza and COVID-19 can be serious in older adults and people with chronic illness.

Prevention. Wear a mask when symptomatic, wash hands often, ventilate, give a sick person their own room if possible, and see a doctor for high fever or breathing difficulty.

How cleaning and spraying help. The service and product information list SARS-CoV-2 (COVID-19), RSV, and influenza H1N1 and H5N1 among covered organisms. Spraying shared touch points before the family returns lowers surface contamination on day one.

No. 6: Hepatitis A virus

Why it ranks sixth. Hepatitis A spreads through food and water contaminated with faeces, which can happen in flooded homes and in temporary communal kitchens. Symptoms appear later than other stomach bugs, so people rarely link them to the flood.

Where it hides. Flooded water jars and tanks, food containers, and cooks' hands.

Symptoms and prevention. Tiredness, poor appetite, nausea, yellow skin or eyes, and dark urine. Drink boiled or bottled water, clean jars and tanks before use, cook food thoroughly, and ask a doctor about vaccination where appropriate.

How cleaning and spraying help. Hepatitis A sits within the virus group the product says it covers, but it is not on the named list, so ask WHD for test data. Spraying focuses on kitchen surfaces after dishes are washed and contaminated food is thrown away.

No. 7: Melioidosis bacteria in soil and mud (Burkholderia pseudomallei)

Why it ranks seventh. This soil and surface-water bacterium is flagged by the Department of Disease Control in the rainy season for people handling mud. It is less common than the germs above.

Symptoms and who is at risk. Anything from fever and abscesses to pneumonia. People with diabetes, kidney disease or heavy alcohol use face higher risk. Tell your doctor about mud exposure if you develop a fever.

Prevention and spraying. Wear thick gloves, boots and a mask when shovelling, cover wounds, and shower afterwards. Removing all mud is the key step; spraying follows for indoor surfaces. It is a bacterium in the group the product names, with no organism-specific result we can cite.

No. 8: Wound bacteria and tetanus risk (Staphylococcus aureus, Streptococcus, Clostridium tetani)

Why it ranks eighth. Moving furniture, shovelling mud and walking where you cannot see the floor all cause scrapes, cuts and nail punctures, giving skin and soil bacteria a way in.

Symptoms and prevention. Red, hot, swollen or pus-filled wounds and fever; tetanus can cause muscle stiffness. If you are unsure about your tetanus vaccination, ask a doctor. Wear thick gloves and solid shoes, wash wounds with clean water and soap, and cover them.

How spraying helps. Spraying does not treat wounds, but it reduces germs on surfaces the family touches every day. These bacteria fall in the group the product names; ask WHD for organism-specific data.

No. 9: Skin and foot fungi, the "water-rotted feet" problem (dermatophytes, Candida)

Why it ranks ninth. Daily wading leaves feet soggy and cracked, inviting fungi. Rarely serious, but very common.

Symptoms and prevention. Peeling, itchy, red skin between the toes with an odour; people with diabetes should be especially careful. Dry feet after every wading, change socks often, dry shoes, don't share towels, and see a doctor if it spreads.

How spraying helps. The product information says it covers fungi in general. Spraying bathroom floors, walkways and shoe racks after washing and drying reduces repeat contact at home.

What happens when post-flood germs are ignored in a low-lying home

Health. Families returning from shelters often include people who have just recovered and people worn out by temporary living. Moving back into a house that still holds sewage bacteria and mold can bring waves of diarrhoea, coughs or rashes.

Money and time. Medical bills and lost income usually cost more than a proper clean-up, and superficially cleaned homes often need a second round when smell or mold returns.

Why soap, bleach or scrubbing alone may fall short

Scrubbing with detergent is essential and comes first, but long-flooded homes have limits:

• Large areas and many corners. High walls, under beds, behind cupboards and tile grout are hard to reach or exhausting to scrub.
• Bleach must be mixed and used correctly. Wrong ratios, or mixing with other cleaners, can release irritating gases, especially in closed rooms.
• Contact time. Every disinfectant needs time on the surface; wiping and rinsing straight away may not work as expected.
• Fans, air fresheners and paint dry, mask or cover. They do not disinfect.

WHD post-flood disinfection spraying for homes and shops in Aranyaprathet

World Health Disinfection is based in Bang Khae district, Bangkok 10160. We have no branch in Sa Kaeo. Upcountry jobs, including Aranyaprathet, are arranged by phone at 065-556-6294 or LINE @whd268; the team reviews the site, distance and schedule before confirming a date. We do not promise same-day service, because access and queues vary while so many households are affected.

According to the service information, WHD's disinfection spraying service is carried out by trained technicians using spraying and/or ULV (Ultra Low Volume) fine-mist fogging with CHEMGENE HLD4H, a medical-grade disinfectant from the UK containing Benzalkonium Chloride and Didecyldimethylammonium Chloride. The service page says it covers a broad spectrum of viruses, bacteria and fungi, including COVID-19, RSV, H1N1, H5N1 and hand-foot-and-mouth virus, claiming 99.99%; the product page adds organisms such as norovirus, Salmonella and Bordetella pertussis. The page lists the Department of Medical Sciences, Mahidol University, NHS England and EN 14476:2013+A2:2019. For organisms not on those lists we make no claims, and you are welcome to ask for test data first. The current promotion includes a free CHEMGENE spray bottle and WELLGIENIC wet wipes, and a tax invoice is available.

Service steps for a low-lying home

1. Contact and send photos of the house, water line and floor area via LINE @whd268.
2. Wait for the water to go, then remove mud. Spraying comes after the water has receded, mud is out and surfaces are washed.
3. Zone and prepare. Pack away food, medicines and personal items; order rooms by risk: bathroom, kitchen, children's bedroom.
4. Technicians spray. Everyone, including pets, leaves the zone being treated.
5. Wait for re-entry. The service information says about 30 minutes; always follow the time the technician gives on site.
6. Move back and keep it up. Ventilate, wipe high-touch spots daily and watch for symptoms.

We do not claim spraying leaves no residue at all. Anyone who is ill should see a doctor; spraying is part of home recovery, not medical treatment.

10 reasons Tha Kham households choose WHD spraying after the flood

1. A clear order of work: bathroom, kitchen and children's room first, following this ranking.
2. CHEMGENE HLD4H, which the product page says covers a broad spectrum of viruses, bacteria and fungi.
3. A good fit for families just back from shelters, since named organisms include norovirus, RSV and influenza.
4. ULV fine mist reaches corners, high walls and under furniture.
5. Trained technicians, so you avoid mixing chemicals yourself in closed rooms.
6. A simple process with about 30 minutes before re-entry, or as the technician advises.
7. Suitable for homes and for shops along Suwannasorn Road reopening with confidence.
8. A free CHEMGENE spray bottle and WELLGIENIC wipes for daily touch points.
9. Tax invoices for shops and businesses.
10. Straight answers: ask for organism-specific test data before you decide. See the post-flood disinfection service.

Before and after spraying a low-lying home

Results depend on water depth, how long it stood and how well the home was cleaned first. This is an illustration, not a guarantee.

Example case: Somporn's family follows the nine ranks home

An illustrative example, not a real customer review.

Somporn's family kept the grandson at the shelter for now. Once the water dropped, her husband and daughter shovelled out mud in boots, gloves and masks, discarded the mattress and moldy boxes, cleaned the bathroom and kitchen first, and dried the walls. They sent photos to LINE @whd268 and booked a date. On the day, everyone left while the technician sprayed room by room. Shelter blankets and bags were washed before coming inside, and the grandson came home the next week once his runny nose cleared.

Recovery checklist for a Tha Kham home

Before spraying

• Confirm the water has receded and the electrics are safe
• Wear boots, rubber gloves and a mask
• Remove all mud, including under beds and behind cupboards
• Discard soaked food, mattresses and porous items
• Scrub with clean water and detergent, then dry
• Clean water jars and tanks
• Pack away food, medicines and personal items

After spraying

• Re-enter at the technician's time and ventilate
• Wash blankets, clothes and bags from the shelter
• Wipe handles, taps and remotes daily for the first week
• Watch for fever, diarrhoea, cough or rash and see a doctor
• Check walls above the water line weekly for new mold

FAQ: post-flood germ ranking for Tha Kham, Aranyaprathet

Q: Suwannasorn Road is open. Does that mean homes are safe?
A: Not necessarily. On 30 September 2026 low-lying communities were still deeply flooded. Wait for the water to leave, then clean and spray.

Q: Is this an official ranking?
A: No. It is WHD's editorial ranking using the five criteria above, not case statistics.

Q: Why are respiratory viruses on a flood list?
A: Because many people stayed in shelters, where these viruses spread easily and can follow families home.

Q: Does WHD have a branch in Sa Kaeo?
A: No. WHD is in Bang Khae, Bangkok; upcountry jobs are booked via 065-556-6294 or LINE @whd268.

Q: Do we have to leave during spraying?
A: Yes. People and pets leave the treated zone and return at the technician's stated time.

Mud out? Let WHD spray before your family moves back

Free consultation. Send photos and book a date in the queue.

See the Disinfection Spraying Service

Call 065-556-6294 | LINE @whd268

Related services and references

• WHD disinfection spraying service
• Residential ozone disinfection
• Siam Rath, 30 September 2026: Aranyaprathet flood update
• Daily News, 5 October 2026: DDPM flood report
• CDC: Floods | WHO Fact sheets | Department of Disease Control