Influenza Update Week for Week 7 in Ireland

February 23, 2012

Influenza activity in Ireland continued to increase slowly during week 7 2012, but still remained at low levels. The sentinel GP influenza-like illness (ILI) consultation rate was slightly increased compared to week 6 2011. ILI rates are now above the Irish baseline threshold (25.9 per 100,000 population). The highest age specific ILI rates were in the 5-14 year age group during week 7 2012. Influenza A (H3) has been the dominant influenza virus detected this season.
Eleven confirmed influenza hospitalised cases (all influenza A) were notified during week 7 2012. Three influenza-associated deaths have been reported to HPSC to date this season. One influenza A hospital outbreak was reported during week 7 2012. To date this season, four influenza outbreaks and one RSV outbreak have been reported. Influenza activity continued to increase across Europe, although with significant variation in timing and no clear geographic progression.


Influenza in Ireland Week 6 2012

February 16, 2012

Update by Dr D Gallagher, Employment Health Advisors (EHA):
Influenza activity in Ireland continued to increase during week 6 2012, however remained at low levels. The sentinel GP influenza-like illness (ILI) consultation rate was 26.2 per 100,000 population in week 6 2012, an increase compared to week 5 2011 and is now above the Irish baseline threshold (25.9 per 100,000 population). Antiviral drugs for the treatment and/or prevention of influenza in at-risk patients are recommended in line with the Interim guidelines on the use of antivirals for the treatment and prophylaxis of influenza. ILI rates increased in all age groups, in particular in 0-4 year olds. The proportion of influenza–related calls to GP Out-of-Hours services increased slightly during week 6 2012, although remained at low levels. Forty-one influenza positive specimens were detected by the NVRL during week 6 2012. Influenza positivity has increased each week for three consecutive weeks. Influenza A (H3) has been the dominant influenza virus detected this season. Three confirmed influenza hospitalised cases (all influenza A) were notified during week 6 2012. One influenza A outbreak in a residential unit was reported during week 6 2012. Influenza activity continued to increase across Europe, although with significant variation and no clear geographic progression.


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