Ronan Kelly
Retired 2020
Re: Influenza Surveillance 2012-2013
Influenza Surveillance in Ireland ? Weekly Report
Influenza Week 9 2013 (25th February ? 3rd March 2013)
Summary
?Influenza activity in Ireland remained stable during week 9 2013, with influenza‐associated hospitalisations and outbreaks continuing to be reported.
?Overall, there are some indications of declining influenza transmission; however localised activity particularly in the Eastern region remained high.
?The sentinel GP influenza‐like illness (ILI) consultation rate was 44.6 per 100,000 population in week 9 2013, a slight increase compared to the updated rate of 39.9 per 100,000 during week 8 2013.
ILI rates have now remained above the Irish baseline threshold (21.0 per 100,000 population) for 12 weeks this season.
ILI age specific rates were highest in the 5‐14 year age group during week 9 2013.
?The proportion of influenza?related calls to GP Out‐of‐Hours services decreased slightly during week 9 2013, for the third consecutive week.
?Influenza positivity decreased during week 9 2013 to 22.9%, compared to 30.1% during the previous week. Twenty‐five influenza A(H3), 7 influenza A(H1)pdm09, 6 A (unsubtyped) and 26 influenza B positive specimens were reported from the NVRL for week 9 2013.
oThe percentage positivity for influenza A (59.4%) was higher than for influenza B (40.6%).
?Respiratory syncytial virus (RSV) positivity remained at low levels during week 9 2013.
?Positivity levels for adenovirus, parainfluenza viruses and human metapneumovirus have remained at low levels this season.
?During week 9 2013, 34 confirmed influenza cases were reported as hospitalised, 16 associated with influenza A and 18 with influenza B. To date this season, 239 confirmed influenza cases were reported as hospitalised, 69.5% were associated with influenza B.
?Ten adult and four paediatric confirmed influenza cases have been admitted to critical care to date this season. Of these 14 cases, 10 were associated with influenza B, one with influenza A (H1)pdm09 and three with influenza A (unsubtyped). Thirty‐two RSV*paediatric cases were also admitted to critical care this season.
?To date this season, two confirmed influenza B‐associated deaths were reported to HPSC.
?Two acute respiratory outbreaks in residential care facilities were reported to HPSC during week 9 2013.
?Influenza activity remained substantial in week 8 2013 across Europe; however an increasing number of countries reported declining transmission.
...
http://www.hpsc.ie/hpsc/A-Z/Respira...lanceReports/20122013Season/File,13920,en.pdf
Influenza Surveillance in Ireland ? Weekly Report
Influenza Week 9 2013 (25th February ? 3rd March 2013)
Summary
?Influenza activity in Ireland remained stable during week 9 2013, with influenza‐associated hospitalisations and outbreaks continuing to be reported.
?Overall, there are some indications of declining influenza transmission; however localised activity particularly in the Eastern region remained high.
?The sentinel GP influenza‐like illness (ILI) consultation rate was 44.6 per 100,000 population in week 9 2013, a slight increase compared to the updated rate of 39.9 per 100,000 during week 8 2013.
ILI rates have now remained above the Irish baseline threshold (21.0 per 100,000 population) for 12 weeks this season.
ILI age specific rates were highest in the 5‐14 year age group during week 9 2013.
?The proportion of influenza?related calls to GP Out‐of‐Hours services decreased slightly during week 9 2013, for the third consecutive week.
?Influenza positivity decreased during week 9 2013 to 22.9%, compared to 30.1% during the previous week. Twenty‐five influenza A(H3), 7 influenza A(H1)pdm09, 6 A (unsubtyped) and 26 influenza B positive specimens were reported from the NVRL for week 9 2013.
oThe percentage positivity for influenza A (59.4%) was higher than for influenza B (40.6%).
?Respiratory syncytial virus (RSV) positivity remained at low levels during week 9 2013.
?Positivity levels for adenovirus, parainfluenza viruses and human metapneumovirus have remained at low levels this season.
?During week 9 2013, 34 confirmed influenza cases were reported as hospitalised, 16 associated with influenza A and 18 with influenza B. To date this season, 239 confirmed influenza cases were reported as hospitalised, 69.5% were associated with influenza B.
?Ten adult and four paediatric confirmed influenza cases have been admitted to critical care to date this season. Of these 14 cases, 10 were associated with influenza B, one with influenza A (H1)pdm09 and three with influenza A (unsubtyped). Thirty‐two RSV*paediatric cases were also admitted to critical care this season.
?To date this season, two confirmed influenza B‐associated deaths were reported to HPSC.
?Two acute respiratory outbreaks in residential care facilities were reported to HPSC during week 9 2013.
?Influenza activity remained substantial in week 8 2013 across Europe; however an increasing number of countries reported declining transmission.
...
http://www.hpsc.ie/hpsc/A-Z/Respira...lanceReports/20122013Season/File,13920,en.pdf