tetano
Editor, Senior Moderator
Epidemiol Infect. 2017 Feb 7:1-10. doi: 10.1017/S095026881700005X. [Epub ahead of print]
[h=1]Developing a system to estimate the severity of influenza infection in England: findings from a hospital-based surveillance system between 2010/2011 and 2014/2015.[/h] Boddington NL[SUP]1[/SUP], Verlander NQ[SUP]1[/SUP], Pebody RG[SUP]1[/SUP].
[h=3]Author information[/h]
[h=3]Abstract[/h] The UK Severe Influenza Surveillance System (USISS) was established following the 2009 influenza pandemic to monitor severe seasonal influenza. This article describes the severity of influenza observed in five post-2009 pandemic seasons in England. Two key measures were used to assess severity: impact measured through the cumulative incidence of laboratory-confirmed hospitalised influenza and case severity through the proportion of confirmed hospitalised cases admitted into intensive care units (ICU)/high dependency units (HDU). The impact of influenza varied by subtype and age group across the five seasons with the highest crude cumulative hospitalisation incidence for influenza A/H1N1pdm09 cases in 2010/2011 and in 0-4 year olds each season for all-subtypes. Case severity also varied by subtype and season with a higher hospitalisation: ICU ratio for A/H1N1pdm09 and older age groups (older than 45 years). The USISS system provides a tool for measuring severity of influenza each year. Such seasonal surveillance can provide robust baseline estimates to allow for rapid assessment of the severity of seasonal and emerging influenza viruses.
[h=4]KEYWORDS:[/h] Hospitalisation; Influenza; Severity
PMID: 28166855 DOI: 10.1017/S095026881700005X
[PubMed - as supplied by publisher]
[h=1]Developing a system to estimate the severity of influenza infection in England: findings from a hospital-based surveillance system between 2010/2011 and 2014/2015.[/h] Boddington NL[SUP]1[/SUP], Verlander NQ[SUP]1[/SUP], Pebody RG[SUP]1[/SUP].
[h=3]Author information[/h]
[h=3]Abstract[/h] The UK Severe Influenza Surveillance System (USISS) was established following the 2009 influenza pandemic to monitor severe seasonal influenza. This article describes the severity of influenza observed in five post-2009 pandemic seasons in England. Two key measures were used to assess severity: impact measured through the cumulative incidence of laboratory-confirmed hospitalised influenza and case severity through the proportion of confirmed hospitalised cases admitted into intensive care units (ICU)/high dependency units (HDU). The impact of influenza varied by subtype and age group across the five seasons with the highest crude cumulative hospitalisation incidence for influenza A/H1N1pdm09 cases in 2010/2011 and in 0-4 year olds each season for all-subtypes. Case severity also varied by subtype and season with a higher hospitalisation: ICU ratio for A/H1N1pdm09 and older age groups (older than 45 years). The USISS system provides a tool for measuring severity of influenza each year. Such seasonal surveillance can provide robust baseline estimates to allow for rapid assessment of the severity of seasonal and emerging influenza viruses.
[h=4]KEYWORDS:[/h] Hospitalisation; Influenza; Severity
PMID: 28166855 DOI: 10.1017/S095026881700005X
[PubMed - as supplied by publisher]