Hong Kong: Strep suis, psittacosis and necrotizing fasciitis cases reported - Outbreak News Today | Outbreak News Today Outbreak News Today
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The Hong Kong Centre for Health Protection (CHP) of the Department of Health (DH) reported the following sporadic cases in the city in recent days and weeks:

Hong Kong/CIA

Hong Kong/CIA

On November 11, 2016, CHP recorded a case of psittacosis affecting a 70-year-old female with underlying illness. She presented with fever, productive cough, shortness of breath, vomiting, diarrhea and dizziness on October 30. She was admitted to a public hospital on November 7 and her chest X-ray showed bilateral consolidation. Her clinical diagnosis was atypical pneumonia. Her condition deteriorated requiring management in intensive care unit. Subsequently, she was transferred to another public hospital from November 9 to 17 for extracorporeal membrane oxygenation therapy. Her current condition is stable. Her endotracheal aspirate collected on November 7 was tested positive for Chlamydophila psittaci DNA. She had no recent travel history. She did not report any contact history with birds or their excreta during the incubation period. Her home contacts remained asymptomatic.

On November 11, 2016, CHP recorded a sporadic case of Streptococcus suis infection affecting a 70-year-old woman with pre-existing medical conditions. She presented with neck and back pain on November 1 and was admitted to a public hospital on November 4. She was treated with antibiotics and her condition was stable. Blood culture collected on November 8 grew Streptococcus suis. She had handled raw pork at home during the incubation period and her home contacts were asymptomatic.

On November 14, 2016, CHP recorded a sporadic case of necrotizing fasciitis due to Vibrio vulnificus infection affecting a 72-year-old male with underlying illnesses. He sustained right foot injury after slip and fall on November 8. He presented with progressive swelling and redness over the foot then subsequently developed spike of fever. He attended the Accident and Emergency Department of a public hospital on November 12 and was admitted on same day. The patient developed hypotensive shock and cardiac arrest upon admission. He was transferred to intensive care unit for further management.

The clinical diagnosis was necrotizing fasciitis. Incision and drainage of right foot was performed on November 13, and above-knee-amputation of right leg was performed on November 14. His blood culture taken on November 12 grew Vibrio vulnificus. His condition remained critical. Epidemiological investigation revealed that the patient lived with his wife and son who remained asymptomatic. He did not have recent travel history. The patient occasionally went to wet market but recalled no history of contact with fish or ate any undercooked/raw seafood during incubation period. Investigation was ongoing.

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