Hong Kong – CHP investigates outbreak of upper respiratory tract infection at secondary school

CHP investigates outbreak of upper respiratory tract infection at secondary school

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     The Centre for Health Protection (CHP) of the Department of Health is today (September 27) investigating an outbreak of upper respiratory tract infection (URTI) at a secondary school in Kwun Tong, and appeals to members of the public and staff of institutions to stay alert and maintain strict personal and environmental hygiene.

     The outbreak involves six male and 14 female students aged 12 to 14. They developed symptoms since September 21, and 11 of them sought medical attention. None of them required hospitalisation. All are in stable condition.

     The CHP has provided preventive advice against URTI to the secondary school, such as advising the school to arrange cleaning and disinfection, to open windows where appropriate for better ventilation and to separate affected students from other students, etc. The secondary school has been placed under medical surveillance.

     The public should maintain good personal and environmental hygiene against influenza and other respiratory illnesses, and note the following:
 

  • Receive seasonal influenza vaccination for personal protection;
  • Surgical masks can prevent transmission of respiratory viruses from ill persons. It is essential for persons who are symptomatic (even if having mild symptoms) to wear a surgical mask;
  • For high-risk persons (e.g. persons with underlying medical conditions or persons who are immunocompromised), wear a surgical mask when taking public transport or staying in crowded places. It is important to wear a mask properly, including performing hand hygiene before wearing and after removing a mask;
  • Avoid touching one’s eyes, mouth and nose;
  • Wash hands with liquid soap and water properly whenever possibly contaminated;
  • When hands are not visibly soiled, clean them with 70 to 80 per cent alcohol-based handrub;
  • Cover the nose and mouth with tissue paper when sneezing or coughing. Dispose of soiled tissue paper properly into a lidded rubbish bin, and wash hands thoroughly afterwards;
  • Maintain good indoor ventilation;
  • When having respiratory symptoms, wear a surgical mask, refrain from work or attending classes at school, avoid going to crowded places and seek medical advice promptly; and
  • Maintain a balanced diet, exercise regularly, take adequate rest, do not smoke and avoid overstress.

     Members of the public, particularly children, the elderly and those with chronic diseases, should consult a doctor promptly if they develop symptoms of respiratory tract infection.

Hong Kong – CHP investigates probable case of botulism

CHP investigates probable case of botulism

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     The Centre for Health Protection (CHP) of the Department of Health (DH) is today (September 27) investigating a probable case of botulism after receiving injections of botulinum toxin locally, and again reminded the public that botulinum toxin injections should only be prescribed and performed by registered doctors.

     The female patient, aged 21 with good past health, has presented with dizziness, ptosis, limb weakness and breathing difficulty since September 22. She attended the Accident and Emergency Department of Tin Shui Wai Hospital yesterday (September 26) due to increased dizziness and swallowing difficulties. She was referred to Pok Oi Hospital and admitted today. She is in stable condition. The clinical diagnosis was suspected iatrogenic botulism.

     According to the information provided by the patient, she received botulinum toxin injections in the calves in a private premises in Tai Po on September 15. Investigations are ongoing.

     “Botulinum toxin injections should only be performed by a locally registered doctor. Customers should look for his or her full name against the list of registered doctors of the Medical Council of Hong Kong as well as his or her professional qualifications and relevant experience,” a spokesman for the DH said.

     Due to the weakening of associated muscles and the fact that botulinum toxin may spread and affect other areas beyond the injection site, affected patients may have drooping of the eyelids, double vision or blurred vision, problems with chewing, hoarseness or even difficulties in swallowing, speaking or breathing, which may happen hours, days or weeks after the injection.

     The DH urged the public to observe the health advice below before receiving botulinum toxin injections:
 

  • Injections should only be performed by locally registered doctors;
  • Understand the procedure, potential risks and complications before receiving injections. Consult a doctor for an informed decision;
  • Do not receive an injection in the case of a history of allergy to botulinum toxin, or infection or inflammation on the injection site;
  • Request the full name of the doctor in writing if referred by a beauty service provider for the procedure, as well as the professional qualifications and relevant experience; and
  • If symptoms develop, such as fever or feeling unwell, seek medical attention immediately.

     ​The public may visit the DH’s webpage on the differentiation between medical procedures and beauty services, the Drug Database of the Drug Office and the CHP’s botulism page for more information.​

Hong Kong – CHP investigates outbreak of upper respiratory tract infection at two schools

CHP investigates outbreak of upper respiratory tract infection at two schools

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     The Centre for Health Protection (CHP) of the Department of Health is today (September 18) investigating an outbreak of upper respiratory tract infection (URTI) at a primary school in Yuen Long and a secondary school in Kwun Tong, and appeals to members of the public and staff of institutions to stay alert and maintain strict personal and environmental hygiene.

     The outbreak at the primary school in Yuen Long involves 12 male and nine female students aged five to 11. They developed symptoms since September 14, and 11 of them sought medical attention. None of them required hospitalisation. All are in stable condition.

     The outbreak at the secondary school in Kwun Tong involves five male and 15 female students aged 11 to 16. They developed symptoms since September 12, and 17 of them sought medical attention. None of them required hospitalisation. All are in stable condition.

     The CHP has provided preventive advice against URTI to the primary school and the secondary school, such as advising the schools to arrange cleaning and disinfection, to open windows where appropriate for better ventilation and to separate affected students from other students, etc. The schools have been placed under medical surveillance.

     The public should maintain good personal and environmental hygiene against influenza and other respiratory illnesses, and note the following:
 

  • Receive seasonal influenza vaccination for personal protection;
  • Surgical masks can prevent transmission of respiratory viruses from ill persons. It is essential for persons who are symptomatic (even if having mild symptoms) to wear a surgical mask;
  • For high-risk persons (e.g. persons with underlying medical conditions or persons who are immunocompromised), wear a surgical mask when taking public transport or staying in crowded places. It is important to wear a mask properly, including performing hand hygiene before wearing and after removing a mask;
  • Avoid touching one’s eyes, mouth and nose;
  • Wash hands with liquid soap and water properly whenever possibly contaminated;
  • When hands are not visibly soiled, clean them with 70 to 80 per cent alcohol-based handrub;
  • Cover the nose and mouth with tissue paper when sneezing or coughing. Dispose of soiled tissue paper properly into a lidded rubbish bin, and wash hands thoroughly afterwards;
  • Maintain good indoor ventilation;
  • When having respiratory symptoms, wear a surgical mask, refrain from work or attending classes at school, avoid going to crowded places and seek medical advice promptly; and
  • Maintain a balanced diet, exercise regularly, take adequate rest, do not smoke and avoid overstress.

     ​
     Members of the public, particularly children, the elderly and those with chronic diseases, should consult a doctor promptly if they develop symptoms of respiratory tract infection.

Hong Kong – CHP investigates suspected puffer fish poisoning case

CHP investigates suspected puffer fish poisoning case

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     The Centre for Health Protection (CHP) of the Department of Health is today (August 28) investigating a suspected puffer fish poisoning case, and hence reminded members of the public not to consume puffer fish.
      
     The case involves an 84-year-old man who developed dizziness, finger numbness and shortness of breath about one hour after consuming cooked puffer fish, which was caught by himself on that day in local waters, at home on August 25.

     He attended the Accident and Emergency Department of Pamela Youde Nethersole Eastern Hospital in the small hours on August 26 and was admitted for treatment. He is now in stable condition.

     Investigations by the CHP are continuing.
      
     A spokesman for the CHP said that consumption of puffer fish is the main cause of food poisoning from tetrodotoxin, which is a potent water-soluble neurotoxin that can affect the central nervous system.

     “Organs such as the liver, gonads and skin of puffer fish have high concentrations of tetrodotoxin. Being heat-stable, the toxin does not decompose upon cooking, boiling, drying or freezing. Tetrodotoxin intoxication can cause problems in respiration and circulation, and is potentially fatal. There is no known antidote or antitoxin that can decompose tetrodotoxin. Members of the public are advised to avoid purchasing and preparing puffer fish or unknown fish for consumption to prevent tetrodotoxin-related food poisoning,” the spokesman said.

Hong Kong – CHP investigates suspected food poisoning case related to calcium oxalate raphide

CHP investigates suspected food poisoning case related to calcium oxalate raphide

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     The Centre for Health Protection (CHP) of the Department of Health is today (August 18) investigating a case of suspected food poisoning and reminded the public not to pick or consume wild plants, and to beware of vegetables containing calcium oxalate raphide to avoid food poisoning due to accidental consumption of giant alocasia.

     The female patient, aged 69, developed oral numbness, a burning sensation of the mouth and shortness of breath shortly after consuming a wild taro brought from the Mainland as a gift from a friend in Tai Po yesterday (August 17). She visited a private doctor on the same day. She attended the Accident and Emergency Department of North District Hospital today and was admitted for further treatment on the same day. She is now in stable condition. The clinical diagnosis was suspected calcium oxalate raphide poisoning.

     The CHP’s investigation is ongoing.

     Taro is a popular ingredient used to prepare various dishes and desserts. However, some plants look like taro (e.g. giant alocasia) but contain toxins which can cause food poisoning. Consuming plants containing calcium oxalate raphide (a needle-shaped crystal of the chemical) can injure the skin and mucous membranes and cause irritation, such as numbness and burning sensation of the tongue, mouth and lips, and swelling of the tongue and lips. Consumption of vegetables accidentally mixed with calcium oxalate raphide-containing plants may also cause food poisoning.

     Members of the public should take heed of the following when consuming vegetables:
 

  • Do not pick or consume wild plants;
  • Purchase vegetables from reliable suppliers; and
  • Remove any plants mixed with edible vegetables and wash them thoroughly before cooking and consumption.

     ​​The public may visit the pages on Food Poisoning Related to the Giant Alocasia and Calcium Oxalate Food Poisoning of the Centre for Food Safety of the Food and Environmental Hygiene Department for more information and health advice.