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Euro Surveill. 2019 Jan;24(5). doi: 10.2807/1560-7917.ES.2019.24.5.1900056.
Early season estimate of influenza vaccination effectiveness against influenza hospitalisation in children, Hong Kong, winter influenza season 2018/19.
Chiu SS1,2, Kwan MY3,1, Feng S4, Chan EL2, Chua H4, Wong JS3, Peiris JM4, Cowling BJ4.
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Abstract
The winter 2018/19 influenza season in Hong Kong has been predominated by influenza A(H1N1)pdm09 as at January 2019. We enrolled 2,016 children in three public hospitals in Hong Kong between 2 September 2018 and 11 January 2019. Using the test-negative approach, we estimated high early season effectiveness of inactivated influenza vaccine against influenza A or B of 90% (95% confidence interval (CI): 80-95%) and 92% (95% CI: 82-96%) against influenza A(H1N1)pdm09.
KEYWORDS:
H1N1; Hong Kong; children; hospital; inactivated influenza vaccination; influenza; public health; vaccine effectiveness; winter
PMID: 30722814 DOI: 10.2807/1560-7917.ES.2019.24.5.1900056
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Early season estimate of influenza vaccination effectiveness against influenza hospitalisation in children, Hong Kong, winter influenza season 2018/19.
Chiu SS1,2, Kwan MY3,1, Feng S4, Chan EL2, Chua H4, Wong JS3, Peiris JM4, Cowling BJ4.
Author information
Abstract
The winter 2018/19 influenza season in Hong Kong has been predominated by influenza A(H1N1)pdm09 as at January 2019. We enrolled 2,016 children in three public hospitals in Hong Kong between 2 September 2018 and 11 January 2019. Using the test-negative approach, we estimated high early season effectiveness of inactivated influenza vaccine against influenza A or B of 90% (95% confidence interval (CI): 80-95%) and 92% (95% CI: 82-96%) against influenza A(H1N1)pdm09.
KEYWORDS:
H1N1; Hong Kong; children; hospital; inactivated influenza vaccination; influenza; public health; vaccine effectiveness; winter
PMID: 30722814 DOI: 10.2807/1560-7917.ES.2019.24.5.1900056
Free full text