Min Buri and Suwinthawong Flooding 2026: What the News Reported

The facts below come from reports published between 25 September and 6 October 2026 by FM91, Thai PBS, Siam Rath and Bangkok Biz News, listed by date. Water depths are the figures reported at the time and change from day to day, so always check the latest Bangkok Metropolitan Administration (BMA) updates as well.

• Rainfall in the 24 hours to 25 September 2026: 99 mm was recorded in Min Buri, according to news reports.
• 25 September 2026: Suwinthawong Road was flooded by about 15 to 20 cm.
• 29 September 2026: Sihaburanukit Soi 14 and Suwinthawong Road at the Hathai Rat section still had about 20 cm of water.
• 4 October 2026: Suwinthawong Road at the Hathai Rat section was again reported at about 20 cm.
• 6 October 2026, 07:00: at the U-turn under the bridge in front of Lotus's, water reached kerb level across two traffic lanes.

For context, Thai PBS and other outlets reported that Bangkok received more than 300 mm of rain in roughly 48 hours on 25 and 26 September 2026, that the BMA declared all 50 districts disaster zones on 26 September, and that the Department of Disaster Prevention and Mitigation reported on 6 October that around 329,000 Bangkok households had been affected.

The clearest message in these reports is duration. The Hathai Rat section of Suwinthawong was reported flooded at least three times across almost two weeks. When water stays that long, people wade through it every day, shops open and close behind splashing water, and damp climbs deeper into ground-floor walls than it would after a flood that drains in hours. That is why this ranking gives extra weight to repeated contact and accumulated moisture.

Where Min Buri and Suwinthawong Flooded, and the Risk Points Inside Buildings

1. Suwinthawong Road at the Hathai Rat intersection: about 20 cm reported on both 29 September and 4 October 2026. Commuters waded here repeatedly, and roadside shops and bus stops took spray from passing vehicles.
2. The U-turn under the bridge in front of Lotus's on Suwinthawong Road: water at kerb level across two lanes on the morning of 6 October 2026. Underpasses are low points where water collects from several directions and mixes with drain water.
3. Sihaburanukit Road Soi 14: about 20 cm on 29 September 2026. Sois like this typically mix homes, rooms for rent and small grocery shops.
4. Suwinthawong Road generally: 15 to 20 cm from 25 September 2026, after 99 mm of rain.

The building descriptions are general observations about this kind of neighbourhood, not part of the news reports. Inside roadside shophouses, the risk points we see most often are door thresholds splashed every time a vehicle passes, doormats and sandbags left soaking for days, the bottom edge of steel roller shutters, ground-floor walls wicking moisture upward, ground-floor bathrooms where drains may back up, fridges and shelving that sit on the floor, and boots or sandals left by the door after wading.

A Typical Scenario: The Curry-and-Rice Shop That Stayed Open in the Water

Example case: this is an illustrative scenario based on common situations, not the story of a specific customer.

Auntie Wan runs a one-unit curry-and-rice shop on Suwinthawong Road, not far from Hathai Rat. On the first night of heavy rain, water reached the kerb. She stacked sandbags and expected it to drain in two days. It did not. On days four, five and six, trucks pushed waves of water up to her table legs, and customers walked in with soaked shoes.

Closing was not an option because daily takings paid the rent and her son's school fees. Every evening she mopped with a lemon-scented floor cleaner, and every morning the water was back. After about a week a musty smell came from behind the drinks fridge, a line of small black spots appeared low on the wall, and her son, who washed dishes, developed itchy skin between his toes. One regular complained of an upset stomach after lunch. Auntie Wan felt that mopping was not making the shop truly clean.

Her question is the one many owners here ask: what should I worry about first, leptospirosis, mold, or stomach bugs, and when should I deal with it while the road is still wet? The ranking below tries to answer that systematically.

How We Built the Post-Flood Germ Ranking for Min Buri and Suwinthawong

This is WHD's editorial ranking. It is not an official ranking by any health authority, and it is not based on case data from Min Buri. We have no figures on illnesses in the area, so we quote none. The order uses five criteria:

1. Flood relevance in public health guidance: germs that the World Health Organization, the US CDC and Thailand's Department of Disease Control mention most often in flood settings carry more weight.
2. Fit with the local flood type: Suwinthawong had standing water on a main road for days, mixed with drain water, with daily repeated contact. Germs that benefit from that setting rank higher.
3. Severity: illnesses that can become serious if treatment is delayed rank above those that usually resolve on their own.
4. Who is at risk: this area has commuters, food vendors, workers, schoolchildren and older people living above shops. Germs that affect a wide group rank higher.
5. Persistence and ease of spread: described qualitatively, such as surviving in damp mud or moving easily from hands to mouth, without quoting survival times that lack a source.

Use the ranking as an order of priorities for cleaning and prevention, not as a diagnostic tool. Anyone with fever, muscle pain, severe diarrhoea or an inflamed wound should see a doctor and mention that they waded through floodwater.

The Eight-Germ Post-Flood Ranking for Suwinthawong and Sihaburanukit

1. Leptospira, the Cause of Leptospirosis

Why first: Thailand's Department of Disease Control warns about leptospirosis in every flood, and the Hathai Rat section matches almost every risk factor: repeated wading for days, still water collecting at the underpass U-turn, and roadside food shops and bins that feed rats. The bacteria leave animals in urine, survive in water and damp mud, and enter through cuts, waterlogged skin, eyes or mouth.

Where it hides: kerbside puddles, mud at the base of roller shutters, soaked sandbags, back corners with vegetable crates and rice sacks, and ground-floor storerooms.

Symptoms and risk: sudden high fever, headache, calf pain and red eyes, sometimes with serious kidney or liver effects. Commuters, riders, vendors and cleaners are most exposed. A fever in the days after wading needs a doctor, told about the wading.

Prevention and spraying: boots, waterproof plasters, washing feet with soap, and removing food scraps. Scrape out mud and wash first, then spray flood-touched surfaces. Leptospira is not named on WHD's pages; it belongs to the bacteria group the product says it covers, and you can ask WHD for organism-specific test data.

2. E. coli and Faecal Bacteria

Why second: water that stands on a main road for days is not clean rainwater. Full drains push household and shop wastewater into it. E. coli is the standard indicator of faecal contamination, and some strains cause severe diarrhoea. Food shops splashed daily are exposed on floors, table legs and cooks' hands.

Where it hides: shop floors, plastic furniture legs, ice buckets on the floor, boards and dishes rinsed in doubtful water, ground-floor toilets with backflow, and shoes worn into the kitchen.

Symptoms and risk: diarrhoea, cramps and nausea; young children and older adults dehydrate quickly. Bloody stools or reduced urine need prompt care.

Prevention and spraying: handwashing, clean rinse water, food off the floor, and discarding flood-touched food. Then spray hard surfaces and touch points. E. coli is not named on WHD's pages but falls within the bacteria group the product says it covers.

3. Mold in Ground-Floor Walls (Aspergillus, Penicillium, Cladosporium)

Why third: WHO and CDC advise cleaning and drying within 24 to 48 hours to limit mold, but Suwinthawong shophouses never got that chance while the road kept splashing in. Plaster wicks moisture, plywood swells and damp cardboard feeds mold.

Where it hides: the low band of peeling wall, behind fridges, under shelving, the shutter frame, bathroom ceilings and grout.

Symptoms and risk: stuffy nose, cough, itchy eyes and skin; people with allergies or asthma flare easily, and people with weak immunity should not clean mold themselves.

Prevention and spraying: remove damaged porous items, ventilate, dry, wear a mask, and never paint over damp mold. According to product information, CHEMGENE HLD4H covers fungi and mold, but drying must accompany spraying or mold returns.

4. Norovirus and Rotavirus

Why fourth: main-road neighbourhoods are full of food shops, carts and markets, and both viruses spread very easily via hands, food and surfaces. Norovirus causes group outbreaks where people eat together; rotavirus is a major cause of diarrhoea in young children.

Where it hides: toilet door handles, taps, trays, laminated menus and tables wiped all day with one cloth.

Symptoms and risk: sudden vomiting and diarrhoea. Seek care for drowsiness, little urine or inability to keep fluids down.

Prevention and spraying: thorough handwashing and sick staff stop cooking. According to product information, norovirus is stated as covered; rotavirus is not named but belongs to the virus group the product says it covers.

5. Salmonella and Shigella

Why fifth: both cause food poisoning and dysentery from faecally contaminated food or water. Risk rises with damp storage and fridges that lose power. They rank below the viruses because spread is mostly tied to food, which kitchen hygiene can control.

Where it hides: boards, knives, containers on the floor, egg and meat shelves, and prep areas near the door.

Symptoms and risk: fever, cramps and diarrhoea; older adults, small children, pregnant women and people with chronic illness should see a doctor early.

Prevention and spraying: cook thoroughly, separate raw and cooked boards, and check fridge temperatures. Salmonella is listed as covered in product information; Shigella falls under bacteria in general. Rinse food-contact surfaces with clean water as advised.

6. Wound Bacteria (Staphylococcus aureus, Pseudomonas aeruginosa) and Tetanus Risk

Why sixth: waders step on glass and drain-cover edges they cannot see, and small cuts soaked daily inflame easily. Staphylococcus lives on skin and invades wounds; Pseudomonas thrives in wet places. Dirty puncture wounds also carry a tetanus risk from Clostridium tetani in soil, so ask a doctor if unsure about vaccination.

Symptoms and risk: red, hot, swollen or pus-filled wounds; people with diabetes and older adults heal more slowly.

Prevention and spraying: closed shoes, cover cuts, no shared towels. Neither organism is named on WHD's pages; both belong to the bacteria group the product says it covers. Spraying reduces environmental germs but never replaces wound care.

7. Skin and Foot Fungi (Dermatophytes and Candida)

Why seventh: "water-bitten feet" start with skin softened by soaking, then fungi move in.

Where it hides: shoes that never dry, reused socks, doormats and ground-floor bathrooms.

Prevention and spraying: dry between the toes, change socks and air shoes. These belong to the fungi group the product says it covers; skin symptoms need a pharmacist or doctor.

8. Respiratory Viruses in Crowded Spaces (RSV, Influenza, SARS-CoV-2)

Why eighth: these do not come with the water, but long floods crowd people into open shops, covered bus stops, packed vans and homes hosting relatives. Children are vulnerable to RSV; older adults to flu and COVID-19.

Prevention and spraying: handwashing, masks when ill, ventilation. According to service and product information, RSV, influenza H1N1 and COVID-19 are listed as covered, so spraying shared touch points reduces one route of spread. Breathing difficulty needs a doctor.

What Happens When Germs in Roadside Shops Are Ignored

Staff and customers face stomach illness, wound infections and allergy flare-ups, and older relatives upstairs breathe musty air. A food shop linked to complaints can lose regulars quickly. Daily mopping without proper disinfection repeats the work without ending the problem, while untreated mold spreads into walls and stock and raises repair costs every week.

Why Evening Mopping or Bleach Alone Falls Short

• Ordinary floor cleaner: makes floors look and smell clean, but most products are designed to remove dirt, not to disinfect broadly, and one mop used across the whole shop can carry germs from the doorway to the kitchen.
• Pouring bleach on mud: chlorine loses strength quickly against organic matter. Without removing mud first, the bleach is used up by dirt. It also smells strong and must never be mixed with toilet cleaners or ammonia.
• Fans only: dry the surface but do not remove germs, and while the road is still splashing in, floors get wet again.
• Painting over black spots: hides mold briefly, but moisture in the wall pushes the paint off and mold returns.

The shared advice from health agencies is simple: clean first, then disinfect, and dry as fast as possible. For Suwinthawong shops, start the full process once road water no longer splashes into the building; starting earlier may mean redoing everything.

WHD Post-Flood Disinfection Spraying for Min Buri Shops and Homes

World Health Disinfection is based in Bang Khae, Bangkok 10160. We have no branch in Min Buri, but we serve eastern Bangkok by appointment via 065-556-6294 or LINE @whd268. Visit dates depend on the job queue and flood traffic, so we do not promise same-day service.

According to the disinfection service page, trained technicians spray and/or ULV-fog (Ultra Low Volume fine mist) with CHEMGENE HLD4H, a medical-grade disinfectant from the UK containing Benzalkonium Chloride and Didecyldimethylammonium Chloride. The page lists viruses, bacteria and fungi including COVID-19, RSV, H1N1, H5N1 and hand-foot-and-mouth virus, with a claimed 99.99% efficacy, and lists approvals or endorsements from the Department of Medical Sciences, Mahidol University, NHS England and EN 14476:2013+A2:2019. These are the company's published claims, and documents are available on request.

The Process for Roadside Buildings After Long Standing Water

1. Survey: send photos of the shopfront, ground floor and bathroom on LINE so the team can assess the area, waterline and materials.
2. Mud removal and washing: the owner or a cleaning crew scrapes out mud, washes floors and lower walls, and removes damaged porous items. This is the most important step, because disinfectant works best on clean surfaces.
3. Zoning and preparation: pack away food, dishes and personal items. People and pets leave the zone being sprayed.
4. Spraying: technicians treat flood-touched surfaces and shared touch points such as shutters, table legs, counters and bathrooms, using ULV for hard-to-reach spots.
5. Re-entry: according to the service page, wait about 30 minutes before normal use. Always follow the re-entry time the technician gives on site, and ventilate.

We do not claim the product leaves no residue. Food-contact surfaces and children's items should be wiped with clean water as advised. According to the promotion, spraying customers receive a free CHEMGENE spray bottle and WELLGIENIC wet wipes, and a tax invoice is available. For lingering musty air, our residential ozone disinfection service can be a complementary step.

10 Reasons Min Buri Shops and Homes Choose WHD Spraying After Floods

1. Planning starts from the local germ ranking, built around long standing water and repeated contact.
2. Medical-grade disinfectant: CHEMGENE HLD4H is stated to cover viruses, bacteria and fungi.
3. Trained technicians who know which shop surfaces hands and water reach most.
4. Spray plus ULV to reach behind fridges and under shelves. See the service
5. A clear sequence: clean, zone, spray, then re-enter on the technician's timing.
6. Suits businesses that must reopen, with about 30 minutes before use according to the service page.
7. Certification information you can check, as listed on the website.
8. Experience across many settings such as hospitals, schools, malls, offices and residential buildings. Read more
9. Tax invoices available for shops and companies.
10. Easy contact: call 065-556-6294 or LINE @whd268 and send photos first.

Before and After Spraying a Roadside Shophouse

Example Case: Auntie Wan Restarts by the Ranking

Example case: an illustrative scenario, not a verified customer review.

Once the road in front stopped splashing in, Auntie Wan closed for a day. Her son threw out sandbags, doormats and damp boxes, scraped mud from the shutter, and washed floors and lower walls with detergent. Food that had been on the floor went in the bin. She sent photos on LINE and booked the next available slot. On the day, the technician had her pack dishes into closed boxes and everyone left. Floors, lower walls, table legs, the counter and bathroom were sprayed, with ULV behind the fridge. After the stated time she ventilated, wiped food tables with clean water, and kept fans on the wall for several more days. Her son saw a pharmacist about his feet, and the family now wears boots to the junction.

Recovery Checklist for Min Buri Shops and Homes

Before spraying

• Wait until road water stops splashing into the building
• Switch off ground-floor power if sockets were submerged and have an electrician check
• Wear boots, rubber gloves and a mask
• Discard soaked carpets, cardboard, mattresses and swollen plywood
• Scrape and wash floors, lower walls, bathrooms and furniture legs
• Throw away flood-touched food and medicine
• Send photos to LINE @whd268

After spraying

• Re-enter on the technician's timing and ventilate
• Wipe food-contact surfaces and toys with clean water
• Keep drying until walls are dry
• Watch for black spots and musty smells over the next weeks
• Watch for fever, calf pain, diarrhoea or inflamed wounds and see a doctor

FAQ: Post-Flood Germ Ranking for Min Buri and Suwinthawong

Is this an official BMA or Ministry of Public Health ranking?
No. It is WHD's editorial ranking based on the five stated criteria, not on case data from Min Buri.

The road is still wet. Should I spray now?
Wait until water no longer splashes into the building, then clean first. Meanwhile, protect yourself with boots, handwashing and keeping food off the floor.

When can a food shop reopen after spraying?
The service page says about 30 minutes, but follow the technician's on-site timing and rinse food-contact surfaces with clean water first.

Does the disinfectant kill leptospirosis bacteria?
Leptospira is not named on WHD's pages; it falls within the bacteria group the product says it covers. Ask for organism-specific test data. Personal protection while wading matters most.

Does WHD have a Min Buri branch?
No. We are based in Bang Khae and serve eastern Bangkok by appointment, without a same-day guarantee.

Will mold never come back?
No one can promise that. If walls stay damp, mold may return, so drying and fixing moisture sources must go together.

Long Standing Water Leaves Germs Behind. Let WHD Spray After You Clean

Book Post-Flood Disinfection Spraying

Call 065-556-6294 | LINE @whd268 | worldhealthdisinfection@gmail.com

Related Services

• WHD disinfection spraying service
• CHEMGENE HLD4H disinfectant
• Residential ozone disinfection

References

• FM91 Bangkok flood report: https://fm91bkk.com/newsarticle/79448
• Thai PBS, Bangkok flood points, 29 Sep 2026: https://www.thaipbs.or.th/news/content/558830
• Siam Rath, Bangkok rain and waterlogging: https://siamrath.co.th/quality-of-life/326332
• Bangkok Biz News, waterlogging 6 Oct 2026: https://www.bangkokbiznews.com/news/news-update/1255145
• Thai PBS, Bangkok rainfall overview: https://www.thaipbs.or.th/news/content/558661
• Bangkok Biz News, affected households: https://www.bangkokbiznews.com/news/news-update/1255155
• World Health Organization: https://www.who.int/news-room/fact-sheets
• CDC Floods: https://www.cdc.gov/floods/
• Department of Disease Control, Thailand: https://ddc.moph.go.th/