Respiratory Infections

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Respiratory Infections

Record Detail

HPS Weekly National Influenza Report - Week ending 03 March 2013 07 Mar 2013

This report provides an update on influenza and other seasonal respiratory pathogen activity for the week ending 3 March 2013. For this season, we will provide detailed influenza update reports on a monthly basis with bulletin style weekly updates in the weeks in between.

This report contains summary epidemiological information on influenza-like illness (ILI), its severity and impact in the community and secondary care settings, and estimates of vaccine uptake.

The GP consultation rate for influenza-like illness (ILI) has been calculated using the same method as in the season 2011/12. Please refer to the technical document for further information.

Clinical influenza activity was stable compared to the previous week and remained below the threshold for normal seasonal activity overall. Virological influenza activity detected through the GP sentinel scheme increased compared to the previous week, virological activity reported through non-sentinel sources decreased slightly compared to the previous week.

Eighteen influenza cases with severe infection requiring management in an intensive care unit (ICU) were reported to HPS in the last week. Whilst this is the highest number of ICU cases with confirmed influenza reported in any single week, please note that a number of these cases had been hospitalised over the past two to three weeks and were reported retrospectively this week. The peak week for hospitalisation this season thus far was in Week 1 (16 cases). Since week 40 2012, a total of 96 influenza infections requiring ICU have been reported to HPS (46 A(H3), ten A(H1N1)pdm09, ten A (subtype unknown), 30 B), 28 of these are known to have died.

We continue to see influenza outbreaks (predominantly Influenza A) in closed settings.

Levels of non-influenza seasonal respiratory pathogens overall were in line with expected levels, with the exception of levels of rhinovirus reports, which were slightly higher than at the same time last year.

There is continuing evidence of significant community circulation of influenza. A CMO letter recommending that antivirals can be used in primary care where clinically appropriate was issued on the 20 December and can be accessed at: http://www.sehd.scot.nhs.uk/cmo/CMO(2012)10.pdf.

Publisher(s)
  • Health Protection Scotland
Last Updated : 22/08/2016