Flu Update – Week 48, 2013

December 10, 2013

By Dr J Gallagher, Employment Health Advisors.
All indicators of influenza activity in Ireland were at low levels during week 48 2013; however some clinical indicators were showing signs of slight increases in activity. The sentinel GP influenza-like illness (ILI) consultation rate was 8.4 per 100,000 population in week 48 2013, an increase from the updated rate of 3.9 per 100,000 population in week 47. ILI rates remained below the Irish baseline threshold (21.0 per 100,000 population). ILI rates remained at low levels in all age groups. The proportion of influenza–related calls to GP Out-of-Hours services increased slightly during week 48 2013, however remained at low levels. No influenza positive specimens from sentinel GP or non-sentinel sources were reported from the National Virus Reference Laboratory (NVRL) during week 48 2013. Respiratory syncytial virus (RSV) positivity decreased during week 48 2013, however remained at elevated levels. One confirmed influenza B hospitalised case was reported to HPSC during week 48 2013. This case was previously reported by the NVRL. No confirmed influenza cases were admitted to ICU and reported to HPSC to date this season. There were no reports of any influenza-associated deaths occurring during this period. No acute respiratory outbreaks were reported to HPSC (via Ireland’s Computerised Infectious Disease Reporting System) during week 48 2013. There has been no evidence of sustained influenza activity as yet in Europe for the 2013/2014 season.


Influenza in Ireland Week 20

May 29, 2012

Update by EHA (Dr john Gallagher):
Overall, influenza activity in Ireland remained at low levels during week 20 2012. The sentinel GP influenza-like illness (ILI) consultation rate was low and stable compared to the rate of week 19 2012. ILI rates are below the Irish baseline threshold. Age specific ILI rates remained low in all age groups. No influenza positive specimens were detected by the NVRL during week 20 2012. Influenza A (H3) was the predominant influenza virus circulating this season. To date this season, 11 influenza-associated deaths have been reported to HPSC. No influenza/ILI outbreaks were reported to HPSC during week 20 2012. The 2011/2012 influenza season is drawing to a close in Europe. This season has been unusual in Europe, starting late and with no geographical progression. The season varied considerably in its impact from country to country.


Peak of Flu Passes

February 7, 2011

Update from Dr John Gallagher:
Influenza activity has peaked for the 2010/2011 influenza season and is now declining. However, activity in 5-14 year olds continues to increase in the community and is mainly associated with influenza B infection rather than influenza A(H1N1 2009). The sentinel GP influenza-like illness (ILI) consultation rate showed a slight decrease from the rate reported during week 3 2011. Influenza B is now the predominant circulating influenza type in Ireland. The weekly number of hospitalised cases of influenza also decreased. The proportion of influenza–related calls to GP Out-of-Hours services decreased slightly in week 4 2011.


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