Abstract
Preliminary results for the 2014/15 season indicate low to null effect of vaccination against influenza A(H3N2)-related disease. As of week 5 2015, there have been 1,136 hospital admissions, 210 were due to influenza and 98% of subtype A strains were H3. Adjusted influenza vaccine effectiveness was 33% (range: 6-53%) overall and 40% (range: 13% to 59%) in those 65 years and older. Vaccination reduced by 44% (28-68%) the probability of admission with influenza.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Adolescent
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Adult
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Aged
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Aged, 80 and over
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Female
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Hospitalization / statistics & numerical data*
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Humans
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Immunization Programs
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Influenza A virus / classification
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Influenza A virus / immunology*
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Influenza A virus / isolation & purification
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Influenza Vaccines / administration & dosage*
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Influenza Vaccines / immunology
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Influenza, Human / diagnosis
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Influenza, Human / epidemiology
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Influenza, Human / prevention & control*
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Male
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Middle Aged
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Program Evaluation
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Risk Factors
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Vaccination / statistics & numerical data*
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Young Adult