Via CHP :
" The Centre for Health Protection (CHP) of the Department of Health is today (August 1) investigating a confirmed case of invasive meningococcal infection, a communicable disease transmitted by direct contact with droplets from carriers or infected persons, and hence appealed to the public for vigilance.
The 70-year-old male patient, with chronic illnesses, has presented with pain, swelling and weakness in both legs since July 28. He was admitted to Kwong Wah Hospital on the same day and was subsequently transferred to the Intensive Care Unit on July 31 for further management.
The clinical diagnosis is necrotising fasciitis and he is currently in critical condition.
His blood culture grew Neisseria meningitides, the bacteria causing meningococcal infection, upon laboratory testing.
The CHP's investigation is proceeding.
This is the second confirmed case of invasive meningococcal infection reported to the CHP this year. Four cases were filed in 2012 while eight were reported in 2011.
A CHP spokesman explained that meningococcal infection is caused by a bacterium known as meningococcus. It is mainly transmitted by direct contact through respiratory secretions, including droplets from the nose and throat, from infected persons. The incubation period varies from two to 10 days, commonly three to four days."
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