Hong Kong: Swine and Seasonal Flu Monitor (Vol. 1, No. 1, 9/24/09, excerpts, edited)
[Source Full Document: LINK. EDITED.]
VOLUME 1, NUMBER 1 (PUBLISHED ON SEPTEMBER 24 2009) 2008/2009
Swine and Seasonal Flu Monitor
Swine and Seasonal Flu Monitor is a weekly report produced by the Respiratory Disease Office of the Centre for Health Protection. It summarizes and monitors the weekly situation of HSI and seasonal influenza in Hong Kong.
Local situation on Human Swine Influenza (Pandemic influenza H1N1(2009)) (as of Sep 23, 2009)
Local situation on overall seasonal influenza (as of Sep 23, 2009)
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[Source Full Document: LINK. EDITED.]
VOLUME 1, NUMBER 1 (PUBLISHED ON SEPTEMBER 24 2009) 2008/2009
Swine and Seasonal Flu Monitor
Swine and Seasonal Flu Monitor is a weekly report produced by the Respiratory Disease Office of the Centre for Health Protection. It summarizes and monitors the weekly situation of HSI and seasonal influenza in Hong Kong.
Local situation on Human Swine Influenza (Pandemic influenza H1N1(2009)) (as of Sep 23, 2009)
- In week 38 (Sep 13 to 19), 4,573 patients tested positive for human swine influenza. Among them, 2,413 were males and 2,160 females. Their ages were ranged from 28 days to 86 years (median: 12 years). As of Sep 23, 2009, the cumulative number of patients tested positive for human swine influenza was 23,898. About 66.1% and 82.1% of confirmed cases were younger than 20 and 30 years old respectively.
- In week 38 (Sep 13 to 19), the percentage of HSI cases requiring hospitalization was 12.5%.
- In week 38 (Sep 13 to 19), CHP received 11 severe cases. These severe cases consisted of 6 males and 5 females with ages ranged from 4 years to 63 years. As of Sep 23, 2009, a total of 97 severe cases and 18 fatal cases of human swine influenza were reported. Among them, 46 have recovered and discharged. In terms of risk factors predisposing to severe infections, 68 cases (70.1%) had at least one pre-existing chronic illness.
- The 18 fatal cases involved 13 male and 5 female patients, age ranged from 33 to 73 years (median: 54.5 years). The crude case fatality rate is 0.08%.
Local situation on overall seasonal influenza (as of Sep 23, 2009)
- Influenza activity remained active in Hong Kong as shown by data from laboratory surveillance, sentinel surveillance and designated flu clinics (DFCs).
- Laboratory surveillance data revealed that 26.8% and 11.0% of influenza virus detection was human swine influenza viruses and influenza A (H3N2) viruses respectively.
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