Influenza continues to decline

February 25, 2011

Update by Dr John Gallagher (Employment Health Advisors, EHA): Influenza activity has continued to decrease during week 7 2011. The sentinel GP influenza-like illness (ILI) consultation rate was again decreased from week 6 2011. ILI rates have decreased in all age groups but continue to remain above baseline levels. The proportion of influenza–related calls to GP Out-of-Hours services continued to decrease. All influenza types decreased in week 7 2011, with influenza B remaining the predominant circulating influenza type. No new outbreaks of influenza/ILI have been reported since week 5 2011. The WHO have announced the viruses recommended for use in the Northern Hemisphere 2011/2012 influenza vaccine.


Flu update Week 6 2011

February 21, 2011

Update by Dr John Gallagher (Employment Health Advisors, EHA): During week 6 of 2011 Influenza activity continued to decline in Ireland. The sentinel GP influenza-like illness (ILI) consultation rate decreased from the rate reported during week 5 2011. ILI rates have decreased in all age groups, with the exception of those aged 65 years or older but still remain above baseline levels. Influenza B is the predominant circulating influenza type in Ireland. The weekly number of hospitalised cases of influenza decreased. To date (February 16th 2011) this season, 884 confirmed influenza cases have been hospitalised and 22 deaths have been reported to HPSC. No new outbreaks of influenza/ILI were reported during week 6 2011.

As the 2010/2011 influenza rates to continue to decline we would advise you to mark “influenza vaccination” in your diaries as a priority for the 2011/2012 season. Vaccines for the 2011/2012 season should become available in October 2011-just over 6 months away. It is likely given the experience of the past two years that Influenza A H1N1 will continue to circulate next season. Influenza vaccine is best given early in the season.


Influenza still above baseline levels

February 11, 2011

Update from Dr. John Gallagher (Employment Health Advisors):

In week 5 2011 Influenza activity has continued to decline but remains above baseline threshold levels. The sentinel GP influenza-like illness (ILI) consultation rate showed a slight decrease from week 4 2011. ILI in 0-4 and 5-14 year olds continues to remain at high levels in the community and is mainly associated with influenza B rather than H1N1. The proportion of influenza–related calls to GP Out-of-Hours services decreased slightly. Influenza B is now the predominant circulating influenza type in Ireland. The weekly number of hospitalised cases of influenza remained stable.


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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