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Association between vaccination coverage decline and influenza incidence rise among Italian elderly.


ABSTRACT: After a peak of 68.3% during the 2005-06 season, influenza vaccine coverage among Italian elderly showed an unprecedented, prolonged decline. According to the National surveillance network, the vaccination coverage was ?50% during two of the last three seasons (2014-17). In parallel, influenza-like illness (ILI) rates increased from 2.71% in the triennium 2005-08, to 4.24% in the last triennium. A significant association was found between ILI rise and vaccine coverage decline (P = 0.036), and according to a conservative estimation, each 1% increase in coverage may prevent ?2690 ILI cases among the elderly. A reinforcement of influenza immunization policies is strongly needed in Italy.

SUBMITTER: Manzoli L 

PROVIDER: S-EPMC6051463 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature

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Association between vaccination coverage decline and influenza incidence rise among Italian elderly.

Manzoli Lamberto L   Gabutti Giovanni G   Siliquini Roberta R   Flacco Maria Elena ME   Villari Paolo P   Ricciardi Walter W  

European journal of public health 20180801 4


After a peak of 68.3% during the 2005-06 season, influenza vaccine coverage among Italian elderly showed an unprecedented, prolonged decline. According to the National surveillance network, the vaccination coverage was ≤50% during two of the last three seasons (2014-17). In parallel, influenza-like illness (ILI) rates increased from 2.71% in the triennium 2005-08, to 4.24% in the last triennium. A significant association was found between ILI rise and vaccine coverage decline (P = 0.036), and ac  ...[more]

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