Epidemiological and virological characteristics of influenza B : results of the Global Influenza B Study
© 2015 The Authors. Influenza and Other Respiratory Viruses Published by John Wiley & Sons Ltd..
INTRODUCTION: Literature on influenza focuses on influenza A, despite influenza B having a large public health impact. The Global Influenza B Study aims to collect information on global epidemiology and burden of disease of influenza B since 2000.
METHODS: Twenty-six countries in the Southern (n = 5) and Northern (n = 7) hemispheres and intertropical belt (n = 14) provided virological and epidemiological data. We calculated the proportion of influenza cases due to type B and Victoria and Yamagata lineages in each country and season; tested the correlation between proportion of influenza B and maximum weekly influenza-like illness (ILI) rate during the same season; determined the frequency of vaccine mismatches; and described the age distribution of cases by virus type.
RESULTS: The database included 935 673 influenza cases (2000-2013). Overall median proportion of influenza B was 22·6%, with no statistically significant differences across seasons. During seasons where influenza B was dominant or co-circulated (>20% of total detections), Victoria and Yamagata lineages predominated during 64% and 36% of seasons, respectively, and a vaccine mismatch was observed in ≈25% of seasons. Proportion of influenza B was inversely correlated with maximum ILI rate in the same season in the Northern and (with borderline significance) Southern hemispheres. Patients infected with influenza B were usually younger (5-17 years) than patients infected with influenza A.
CONCLUSION: Influenza B is a common disease with some epidemiological differences from influenza A. This should be considered when optimizing control/prevention strategies in different regions and reducing the global burden of disease due to influenza.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2015 |
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| Erschienen: |
2015 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:9 Suppl 1 |
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| Enthalten in: |
Influenza and other respiratory viruses - 9 Suppl 1(2015) vom: 21. Aug., Seite 3-12 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Caini, Saverio [VerfasserIn] |
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| Links: |
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| Themen: |
Burden of disease |
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| Anmerkungen: |
Date Completed 31.05.2016 Date Revised 08.04.2022 published: Print Citation Status MEDLINE |
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| doi: |
10.1111/irv.12319 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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NLM251668401 |
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| 245 | 1 | 0 | |a Epidemiological and virological characteristics of influenza B |b results of the Global Influenza B Study |
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| 500 | |a Date Completed 31.05.2016 | ||
| 500 | |a Date Revised 08.04.2022 | ||
| 500 | |a published: Print | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a © 2015 The Authors. Influenza and Other Respiratory Viruses Published by John Wiley & Sons Ltd. | ||
| 520 | |a INTRODUCTION: Literature on influenza focuses on influenza A, despite influenza B having a large public health impact. The Global Influenza B Study aims to collect information on global epidemiology and burden of disease of influenza B since 2000 | ||
| 520 | |a METHODS: Twenty-six countries in the Southern (n = 5) and Northern (n = 7) hemispheres and intertropical belt (n = 14) provided virological and epidemiological data. We calculated the proportion of influenza cases due to type B and Victoria and Yamagata lineages in each country and season; tested the correlation between proportion of influenza B and maximum weekly influenza-like illness (ILI) rate during the same season; determined the frequency of vaccine mismatches; and described the age distribution of cases by virus type | ||
| 520 | |a RESULTS: The database included 935 673 influenza cases (2000-2013). Overall median proportion of influenza B was 22·6%, with no statistically significant differences across seasons. During seasons where influenza B was dominant or co-circulated (>20% of total detections), Victoria and Yamagata lineages predominated during 64% and 36% of seasons, respectively, and a vaccine mismatch was observed in ≈25% of seasons. Proportion of influenza B was inversely correlated with maximum ILI rate in the same season in the Northern and (with borderline significance) Southern hemispheres. Patients infected with influenza B were usually younger (5-17 years) than patients infected with influenza A | ||
| 520 | |a CONCLUSION: Influenza B is a common disease with some epidemiological differences from influenza A. This should be considered when optimizing control/prevention strategies in different regions and reducing the global burden of disease due to influenza | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 4 | |a Burden of disease | |
| 650 | 4 | |a Global Influenza B Study (GIBS) | |
| 650 | 4 | |a epidemiology | |
| 650 | 4 | |a influenza | |
| 650 | 4 | |a vaccination | |
| 650 | 4 | |a vaccine mismatch | |
| 650 | 7 | |a Influenza Vaccines |2 NLM | |
| 700 | 1 | |a Huang, Q Sue |e verfasserin |4 aut | |
| 700 | 1 | |a Ciblak, Meral A |e verfasserin |4 aut | |
| 700 | 1 | |a Kusznierz, Gabriela |e verfasserin |4 aut | |
| 700 | 1 | |a Owen, Rhonda |e verfasserin |4 aut | |
| 700 | 1 | |a Wangchuk, Sonam |e verfasserin |4 aut | |
| 700 | 1 | |a Henriques, Cláudio M P |e verfasserin |4 aut | |
| 700 | 1 | |a Njouom, Richard |e verfasserin |4 aut | |
| 700 | 1 | |a Fasce, Rodrigo A |e verfasserin |4 aut | |
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| 700 | 1 | |a Clara, Alexey W |e verfasserin |4 aut | |
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| 700 | 1 | |a Puzelli, Simona |e verfasserin |4 aut | |
| 700 | 1 | |a Kadjo, Herve A |e verfasserin |4 aut | |
| 700 | 1 | |a Emukule, Gideon |e verfasserin |4 aut | |
| 700 | 1 | |a Heraud, Jean-Michel |e verfasserin |4 aut | |
| 700 | 1 | |a Ang, Li Wei |e verfasserin |4 aut | |
| 700 | 1 | |a Venter, Marietjie |e verfasserin |4 aut | |
| 700 | 1 | |a Mironenko, Alla |e verfasserin |4 aut | |
| 700 | 1 | |a Brammer, Lynnette |e verfasserin |4 aut | |
| 700 | 1 | |a Mai, Le Thi Quynh |e verfasserin |4 aut | |
| 700 | 1 | |a Schellevis, François |e verfasserin |4 aut | |
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| 700 | 1 | |a Dorji, Kunzang |e investigator |4 oth | |
| 700 | 1 | |a Marins, José Ricardo Pio |e investigator |4 oth | |
| 700 | 1 | |a de Almeida, Walquiria Aparecida Ferreira |e investigator |4 oth | |
| 700 | 1 | |a Vernet, Marie-Astrid |e investigator |4 oth | |
| 700 | 1 | |a Vernet, Guy |e investigator |4 oth | |
| 700 | 1 | |a Andrade, Winston |e investigator |4 oth | |
| 700 | 1 | |a Yang, Juan |e investigator |4 oth | |
| 700 | 1 | |a Li, Ming |e investigator |4 oth | |
| 700 | 1 | |a Lara, Jenny |e investigator |4 oth | |
| 700 | 1 | |a de Lozano, Celina |e investigator |4 oth | |
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| 700 | 1 | |a Ellis, Joanna |e investigator |4 oth | |
| 700 | 1 | |a Green, Helen |e investigator |4 oth | |
| 700 | 1 | |a Castillo, Leticia |e investigator |4 oth | |
| 700 | 1 | |a Matute, Maria Luisa |e investigator |4 oth | |
| 700 | 1 | |a Nurhayati |e investigator |4 oth | |
| 700 | 1 | |a Donatelli, Isabella |e investigator |4 oth | |
| 700 | 1 | |a Daouda, Coulibaly |e investigator |4 oth | |
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| 700 | 1 | |a Razanajatovo, Norosoa Harline |e investigator |4 oth | |
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| 700 | 1 | |a Lopez, Liza |e investigator |4 oth | |
| 700 | 1 | |a Balmaseda, Angel |e investigator |4 oth | |
| 700 | 1 | |a Moreno, Brechla |e investigator |4 oth | |
| 700 | 1 | |a Cutter, Jeffrey |e investigator |4 oth | |
| 700 | 1 | |a Lee, Vernon J |e investigator |4 oth | |
| 700 | 1 | |a Cohen, Cheryl |e investigator |4 oth | |
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| 700 | 1 | |a Radchenko, Larysa |e investigator |4 oth | |
| 700 | 1 | |a Bresee, Joseph |e investigator |4 oth | |
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