Sentinel Surveillance for Communicable Diseases - Monthly Statistics

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Note(s):

1. * Designated Flu Clinics (DFCs) were activated by Hospital Authority from 13 June, 2009 to 23 May 2010. Please refer to the Influenza Surveillance at Influenza surveillance at Designated Flu Clinics for the relevant statistics.
2. The Centre for Health Protection has started to use electronic data on diagnosis coding of patients of the Hospital Authority's General Out-patient Clinics for sentinel surveillance since January 2020, replacing manual data collection in the past.