Laboratory results have confirmed that a two-year-old boy from Guangzhou does have H5N1 Influenza A, the Centre for Health Protection said today, adding his condition has changed from stable to serious.
 
He is in intensive care at Princess Margaret Hospital and has developed obstructive hydrocephalus.
 
His parents are in quarantine at the hospital and lab tests for the influenza were negative.
 
Two healthcare workers of the private clinic the boy attended, and another patient who attended the same clinic also tested negative.