Sentinel Surveillance for Communicable Diseases - Weekly Statistics

Please define your search criteria and then click the "Start Calculation" button. If you are using a desktop computer, you may choose more than one item in each variable by holding the mouse key or pressing [Ctrl] key during selection.
Note(s):

1. --- Indicates that the statistics are either not available or not applicable.
2. 0.0+ Less than 0.05
3. * 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.
4. 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.
5. The week number represents the corresponding week of that year ending on the Saturday of that week.