tetano
Editor, Senior Moderator
Influenza Other Respir Viruses. 2017 Nov 11. doi: 10.1111/irv.12522. [Epub ahead of print]
[h=1]Literature review of the epidemiology of influenza B disease in 15 countries in the Asia-Pacific region.[/h] Jennings L[SUP]1[/SUP], Huang QS[SUP]2[/SUP], Barr I[SUP]3[/SUP], Lee PI[SUP]4[/SUP], Kim WJ[SUP]5[/SUP], Buchy P[SUP]6[/SUP], Sanicas M[SUP]6[/SUP], Mungall BA[SUP]6[/SUP], Chen J[SUP]6[/SUP].
[h=3]Author information[/h]
[h=3]Abstract[/h] [h=4]AIM:[/h] Influenza control strategies focus on the use of trivalent influenza vaccines containing two influenza A virus subtypes and one of the two circulating influenza type B lineages (Yamagata or Victoria). Mismatches between the vaccine B lineage and the circulating lineage have been regularly documented in many countries, including those in the Asia-Pacific region. We conducted a literature review with the aim of understanding the relative circulation of influenza B viruses in Asia-Pacific countries.
[h=4]METHODS:[/h] PubMed and Western Pacific Region Index Medicus were searched for relevant articles on influenza type B published since 1990 in English language for 15 Asia-Pacific countries. Grey literature was also accessed.
[h=4]RESULTS:[/h] From 4,834 articles identified, 121 full-text articles were analysed. Influenza was reported as an important cause of morbidity in the Asia-Pacific region, affecting all age groups. In all 15 countries, influenza B was identified and associated with between 0%-92% of laboratory-confirmed influenza cases in any one season/year. Influenza type B appeared to cause more illness in children aged between 1-10 years than in other age groups.
[h=4]CONCLUSION:[/h] Epidemiological data for the two circulating influenza type B lineages remain limited in several countries in the Asia-Pacific, although the co-circulation of both lineages was seen in countries where strain surveillance data were available. Mismatches between circulating B lineages and vaccine strains were observed in all countries with available data. The data suggest that a shift from trivalent to quadrivalent seasonal influenza vaccines could provide additional benefits by providing broader protection. This article is protected by copyright. All rights reserved.
This article is protected by copyright. All rights reserved.
[h=4]KEYWORDS:[/h] Asia-Pacific; epidemiology; influenza B; literature review; seasonality; vaccine mismatch
PMID: 29127742 DOI: 10.1111/irv.12522
Free full text
[h=1]Literature review of the epidemiology of influenza B disease in 15 countries in the Asia-Pacific region.[/h] Jennings L[SUP]1[/SUP], Huang QS[SUP]2[/SUP], Barr I[SUP]3[/SUP], Lee PI[SUP]4[/SUP], Kim WJ[SUP]5[/SUP], Buchy P[SUP]6[/SUP], Sanicas M[SUP]6[/SUP], Mungall BA[SUP]6[/SUP], Chen J[SUP]6[/SUP].
[h=3]Author information[/h]
[h=3]Abstract[/h] [h=4]AIM:[/h] Influenza control strategies focus on the use of trivalent influenza vaccines containing two influenza A virus subtypes and one of the two circulating influenza type B lineages (Yamagata or Victoria). Mismatches between the vaccine B lineage and the circulating lineage have been regularly documented in many countries, including those in the Asia-Pacific region. We conducted a literature review with the aim of understanding the relative circulation of influenza B viruses in Asia-Pacific countries.
[h=4]METHODS:[/h] PubMed and Western Pacific Region Index Medicus were searched for relevant articles on influenza type B published since 1990 in English language for 15 Asia-Pacific countries. Grey literature was also accessed.
[h=4]RESULTS:[/h] From 4,834 articles identified, 121 full-text articles were analysed. Influenza was reported as an important cause of morbidity in the Asia-Pacific region, affecting all age groups. In all 15 countries, influenza B was identified and associated with between 0%-92% of laboratory-confirmed influenza cases in any one season/year. Influenza type B appeared to cause more illness in children aged between 1-10 years than in other age groups.
[h=4]CONCLUSION:[/h] Epidemiological data for the two circulating influenza type B lineages remain limited in several countries in the Asia-Pacific, although the co-circulation of both lineages was seen in countries where strain surveillance data were available. Mismatches between circulating B lineages and vaccine strains were observed in all countries with available data. The data suggest that a shift from trivalent to quadrivalent seasonal influenza vaccines could provide additional benefits by providing broader protection. This article is protected by copyright. All rights reserved.
This article is protected by copyright. All rights reserved.
[h=4]KEYWORDS:[/h] Asia-Pacific; epidemiology; influenza B; literature review; seasonality; vaccine mismatch
PMID: 29127742 DOI: 10.1111/irv.12522
Free full text