Low interim influenza vaccine effectiveness, Australia, 1 May to 24 September 2017.

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Low interim influenza vaccine effectiveness, Australia, 1 May to 24 September 2017.

Euro Surveill. 2017 Oct;22(43):

Authors: Sullivan SG, Chilver MB, Carville KS, Deng YM, Grant KA, Higgins G, Komadina N, Leung VK, Minney-Smith CA, Teng D, Tran T, Stocks N, Fielding JE

Abstract
In 2017, influenza seasonal activity was high in the southern hemisphere. We present interim influenza vaccine effectiveness (VE) estimates from Australia. Adjusted VE was low overall at 33% (95% confidence interval (CI): 17 to 46), 50% (95% CI: 8 to 74) for A(H1)pdm09, 10% (95% CI: -16 to 31) for A(H3) and 57% (95% CI: 41 to 69) for influenza B. For A(H3), VE was poorer for those vaccinated in the current and prior seasons.

PMID: 29090681 [PubMed - indexed for MEDLINE]

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