Thailand's First Case: Phuket, July 2022

On 22 July 2022, then DDC Director-General Dr. Opas Karnkawinpong announced at the Ministry of Public Health that a suspected mpox case had been found in Phuket: a 27-year-old Nigerian man with blisters on his face, body, limbs and genitals. Source: Bangkok Biznews

• Lab tests confirmed the virus. As the first case, results were verified at two laboratories, with final confirmation on 19 July and an official announcement on 21 July.
• It was the West African strain, which is less severe than the Central African strain.

Contact tracing

• Two high-risk contacts, both friends of the patient, had no symptoms, tested negative and were monitored for 21 days.
• Officials checked two entertainment venues the patient had visited and found six people with fever or sore throat. Four tested negative, two were awaiting results, and all were monitored for 21 days.

At that briefing the DDC made mpox the 56th communicable disease under surveillance and asked the public not to stigmatize high-risk groups.

Why Hostels Differ From Ordinary Hotels

Hostels and dormitory-style lodging are popular with backpackers in Phuket, Bangkok, Chiang Mai and the islands. Unlike ordinary hotels they have:

• Several strangers sleeping in the same room.
• Bunk beds and bed curtains used one guest after another.
• Shared bathrooms and showers.
• Shared kitchens with shared utensils.
• Rented towels and sheets at some properties.
• Fast guest turnover, with many staying only one or two nights.

These features match the routes the DDC lists: close contact and shared towels, clothing, bedding and utensils. Source: Hfocus, 3 Nov 2026

Real Research on Beds and Shared Sleeping Areas

• A US CDC report from Cook County Jail, Chicago, in 2022 found that after a patient stayed 7 days in a shared dormitory, and even after cleaning, viral DNA was still detected at the head of the patient's bed on day 21, although culture was negative. Source: US CDC MMWR
• A study in the US CDC journal grew live virus from 6 of 10 samples of bedding, towels and clothing in a patient's home 15 days after the patient left. Source: Emerging Infectious Diseases

The Risks for Hostel Businesses

• Many roommates become contacts if one guest is a patient.
• Booking platform reviews affect bookings immediately.
• Small teams cannot clean thoroughly in high season.
• International guests may not know how to see a doctor in Thailand.

Good Practice for Hostels and Dorm Rooms

1. Change sheets, pillowcases and blankets at every change of guest, bagged without shaking, as the US CDC advises. Source: US CDC
2. Wipe and disinfect bed frames, bunk ladders, bed-head walls and lockers at every change of guest.
3. Disinfect shared bathrooms several times a day using wet methods.
4. Shared kitchens: wash utensils with hot water and dish soap.
5. Launder bed curtains on a schedule.
6. Multilingual signs asking guests with fever or a rash to tell staff, with information on seeing a doctor and the 1422 hotline.
7. Keep a private room for guests with symptoms while they wait to see a doctor.
8. Disinfect whole dorm rooms on a schedule, and immediately if a guest is ill.

Why Hostels Choose Chemgene and WHD's Service

The mpox virus is an enveloped virus, the type that suitable disinfectants can inactivate when used correctly and given the full contact time.

World Health Disinfection provides spraying with CHEMGENE HLD4H, a concentrated disinfectant imported from the United Kingdom. According to our service page, the product references testing to the European standard EN 14476 and is applied with ULV equipment. See the disinfection service

Ten reasons it suits hostels, guesthouses and dorm-style lodging:

1. Covers dorm rooms with dozens of beds in one visit.
2. ULV mist reaches top bunks, under beds and behind lockers.
3. Rooms back in use quickly. Under our service process, rooms can be used about 30 minutes after spraying.
4. European-standard disinfectant, referencing EN 14476 per product information.
5. Covers shared bathrooms, kitchens and lounges.
6. Reduces the load on small teams.
7. Builds strong cleanliness reviews on booking platforms.
8. Emergency call-outs when a guest is ill.
9. Tax invoices for juristic persons.
10. More than five years of experience.

Before and After

Before

• Sheets changed but bed frames and bed-head walls not wiped.
• Shared bathrooms cleaned once a day.
• No procedure when a guest has a rash.
• Reviews mention cleanliness negatively.

After

• Linen changed and beds disinfected at every change of guest.
• Shared bathrooms disinfected several times a day.
• A private room and multilingual signs in place.
• Dorm rooms disinfected on schedule.

Frequently Asked Questions

What if a guest in a dorm room falls ill? Move them to a private room, help them see a doctor, follow public health officials' advice, and clean and disinfect the dorm room.

Do roommates have to move out? Follow public health officials' advice; they will assess each person's level of contact.

How long must the dorm room close? Under WHD's process, about 30 minutes after spraying, though reopening to guests depends on official advice.

How often should bed curtains be washed? At least on a regular schedule, and every time a guest has been ill.

Sources and Related Links

• WHD disinfection spraying service
• Chemgene disinfectants
• World Health Disinfection homepage
• Bangkok Biznews: Thailand's first mpox case
• US CDC MMWR: Case in a shared dormitory

A Clean Dorm Room Is a Tourist City's Selling Point

Thailand's first case was found in a tourist city, and real research shows beds and bedding need attention. Hostels and dorm-style lodging that clean and disinfect seriously protect their guests, their staff and their reviews.

World Health Disinfection provides CHEMGENE HLD4H disinfection for hostels, guesthouses, dorm-style lodging and capsule hotels.

Call 065-556-6294 or add LINE @whd268 for a quotation.

Call 065-556-6294 | LINE: @whd268