Health Officials Warn Public to Avoid Soil Contact After Typhoons to Prevent Melioidosis Infection

CHP appeals for heightened vigilance against melioidosis infection following adverse weather conditions

The Centre for Health Protection (CHP) of the Department of Health today (July 26) appealed to members of the public for heightened vigilance against melioidosis infection following adverse weather conditions and urged them to maintain personal and environmental hygiene. The CHP also specifically reminded high-risk groups, including the elderly and people with underlying diseases, to avoid contact with soil or muddy water after typhoons or storms with a view to lowering infection risk.

Melioidosis is a disease caused by the bacterium Burkholderia pseudomallei. Burkholderia pseudomallei is widespread in soil and muddy water, particularly common in moist clay soil. Humans can become infected through contact with contaminated soil and surface water (especially through skin abrasions/wounds), inhalation of contaminated dust/water droplets, and ingestion of contaminated water. Those with underlying diseases or immunosuppression have higher risks of contracting the disease.

According to overseas literature and local data, Burkholderia pseudomallei in the soil and muddy water may be exposed to the ground after typhoons or storms, and the bacteria spread more easily with strong winds and storms. As such, infection cases are more common after typhoons or storms.

In view of the recent disturbance caused by typhoons andconsecutive days of torrential rain, the CHP again reminded members of the public, in particular high-risk groups such as those with underlying diseases, to avoid contact with soil or muddy water as far as practicable to prevent melioidosis infection.

Melioidosis is endemic in Hong Kong, and human infection cases have been recorded in Hong Kong each year. In 2025, 21 melioidosis cases were recorded. In light of the cluster of melioidosis cases recorded in Sham Shui Po in 2022, the CHP and the Water Supplies Department have implemented a series of precautionary and monitoring measures, including the installation of high-efficiency particulate air filters at the ventilators of all fresh water service reservoirs in Hong Kong, enhancing residual chlorine levels in drinking water, continual monitoring of residual chlorine levels in fresh water service reservoirs and consumers' taps, as well as health education and surveillance of infection cases. No abnormalities were detected from all surveillance results so far, including those conducted after typhoons and heavy rain, while the drinking water quality monitoring results have consistently been in compliance with the Hong Kong Drinking Water Standards.

Person-to-person transmission andanimal-to-human transmission are rare but may occur through contact with the blood or body fluids of an infected person. Melioidosis may present with localised infection (such as cutaneous abscess), pneumonia, meningoencephalitis, sepsis, or chronic suppurative infection. Depending on the site of infection, common symptoms of melioidosis include fever, headache, localised pain or swelling, ulceration, chest pain, cough, haemoptysis, and swelling of regional lymph nodes. The CHP again appealed to members of the public to seek medical advice if they develop symptoms, in particular people with diabetes or other immunocompromised conditions, in order to receive appropriate medical diagnosis and treatment.

The CHP reminded members of the public to take the following preventive measures against infection:

• Avoid contact with contaminated soil;
• Wear appropriate protective clothing or footwear when participating in activities with possible contact with soil or water, e.g. usinggloves and wearing boots;
• If exposure to contaminated water or soil is inevitable, high-risk individuals should wear a mask, gloves and boots;
• Wash or shower after exposure to contaminated water or soil;
• Always clean any wounds as soon as possible and cover any cuts or grazes with waterproof dressings;
• Wash hands with liquid soap and water after handling soilor gardening;
• Observe food hygiene and avoid drinking raw water; and
• Travellers can contract the disease through outdoor water sports. Risk of infection can be minimised by avoiding exposure to water sources (such as rivers, ponds or lakes) that might be contaminated.

For more information on melioidosis, please visit the website of the CHPwww.chp.gov.hk/en/healthtopics/content/24/101110.html.

Source: AI-found images

Employers, contractors and employees should be aware of electrical safety at work during rainstorms

As the rainstorm warning has been issued by the Hong Kong Observatory, the Labour Department (LD) reminds employers and contractors that they should adopt necessary work arrangements and take suitable safety measures to protect the safety of their employees when they are carrying out electrical work or handling electrical plant.

A spokesman for the LD said today (July 26) that employers and contractors should avoid assigning employees to carry out electrical work (such as electric arc welding work) or handle electrical plant at places affected by rainstorms, and should refer to the "Code of Practice in Times of Adverse Weather and 'Extreme Conditions'" and the "Guide on Safety at Work in times of Inclement Weather" issued by the LD.

Even if electrical work is carried out or electrical plant is handled at places not affected by a rainstorm, suitable safety measures must still be adopted to prevent an electric shock as the air would be more humid. Such measures include:

(i) Ensure that all live parts of an electrical installation are isolated from the power supply source and rendered dead, and the isolation from the power supply source must be maintained as long as electrical work is being carried out;

(ii) Before carrying out any electrical work or handling any electrical plant, cut off and lock out the power supply source, then test the circuit concerned to confirm that it is dead and display suitable warning notices, and issue a work permit thereafter;

(iii) Ensure that protective devices (such as suitable and adequate fuses and circuit breakers) for the electrical installations or electrical plant have been installed and maintained in good working order, and portable electric tools must be double-insulated or properly earthed;

(iv) Provide suitable personal protective equipment such as insulating gloves and insulating mats for employees; and

(v) If live electrical work is unavoidable, a comprehensive risk assessment should be conducted by a competent person and the appropriate safety precautions should be taken to remove or properly control the electrical hazards involved before such work can proceed.

In addition, employees should co-operate with the employer or contractor to follow the safety instructions and use the safety equipment provided.

The LD has published guidebooks and leaflets on electrical work safety. These safety publications are available free from divisional offices of the department or can be downloaded from its website (www.labour.gov.hk/eng/public/content2_8.htm).

Should there be any questions about occupational safety and health matters, please contact the Occupational Safety Officer of the LD at 2559 2297.

Source: AI-found images