Ronan Kelly
Retired 2020
Re: Influenza Surveillance Reports 2010-2011 - Weeks 40 - 5; 18 fatalities
Re: Influenza Surveillance Reports 2010-2011 - Weeks 40 - 5; 18 fatalities
Influenza Surveillance in Ireland ? Weekly Report
Influenza Week 6 2011 (7th ? 13th February 2011)
Summary
?
Influenza activity has continued to decline in Ireland during week 6 2011.
oThe sentinel GP influenza‐like illness (ILI) consultation rate was 50.3 per 100,000 population in week 6 2011, a decrease from the updated rate of 79.8 per 100,000 reported during week 5 2011.
oILI rates have decreased in all age groups, with the exception of those aged 65 years or older.
oILI rates remain above baseline levels.
oThe proportion of influenza?related calls to GP Out‐of‐Hours services decreased in week 6 2011, coinciding with the decrease in sentinel GP ILI consultation rates.
oThe proportion of influenza positive specimens detected by the NVRL decreased further in week 6 2011 to 13.9%, compared to 20.4% the previous week.
oInfluenza B is the predominant circulating influenza type in Ireland, accounting for 73.1% of all positive influenza specimens detected by the NVRL in week 6 2011.
oThe weekly number of hospitalised cases of influenza decreased to 29 in week 6 2011, from 59 in the previous week.
oTo date (February 16th 2011) this season, 884 confirmed influenza cases have been hospitalised, 118 cases have been admitted to ICU and 22 deaths have been reported to HPSC.
oNo new outbreaks of influenza/ILI were reported during week 6 2011. As of February 16th 2011, 14 influenza/ILI outbreaks have been reported to HPSC this season.
oThe proportion of respiratory syncytial virus (RSV) positive detections increased slightly in week 6 2011.
...
Of the 53 GP sentinel specimens taken during week 6 2011, 21 (39.6%) were positive for influenza: 2 (9.5%) influenza A (H1N1 2009) and 19 (90.5%) influenza B. Of the 322 non‐sentinel specimens taken during week 6 2011, 31 (9.6%) were positive for influenza: 10 (32.3%) A (H1N1 2009), 2 (6.5%) influenza A (unsubtyped) and 19 (61.3%) B. Forty‐five percent (17/38) of all influenza B positive specimens (sentinel and non sentinel) detected during week 6 2011 were from patients aged less than 15 years.
To date this season, 6349 sentinel and non‐sentinel specimens have been tested by the NVRL, 1898 (29.9%) specimens tested positive for influenza: 1356 influenza A (H1N1 2009), 35 influenza A (H3), 28 influenza A (unsubtyped) and 479 influenza B. Of the 1898 positive influenza specimens, 1419 (74.8%) were influenza A and 479 (25.2%) were influenza B (figures 3 & 4). To date this season, six influenza B cases were co‐infected with influenza A: 5 with influenza A (H1N1 2009) and one with influenza A (unsubtyped).
The NVRL has tested seven non‐sentinel specimens from six confirmed influenza A (H1N1 2009) cases for antiviral resistance. All six patients were hospitalised and admitted to intensive care. One (14.3%) specimen was resistant to oseltamivir, carrying the H275Y mutation.
...
As of 16th February 2011 (09:00), HPSC has been notified of 118 hospitalised patients admitted to critical care units with confirmed influenza, 104 of whom are adults and 14 are paediatric cases. Twenty‐one (17.8%) of the 118 cases are currently in ICU??. Eighty‐nine of the 118 (75.4%) cases have underlying medical conditions, 80 adults and nine paediatric cases. The underlying medical conditions include: chronic respiratory disease, chronic heart disease, immunosuppression, pregnancy, metabolic disorders and morbid obesity.
...
HPSC has been informed of 22 influenza associated deaths to date this season (as of 16/02/2011), 17 influenza A (H1N1 2009), one co‐infection of influenza A (H1N1) and influenza B, one influenza A (unsubtyped) and three influenza B. One death was in a patient in the 0‐4 year age group, 16 patients were in the 15‐64 year age group and five patients were aged 65 years and older. Eighteen deaths occurred in patients with underlying medical conditions. One death occurred in week 52 2010, one in week 1 2011, five in week 2 2011, six in week 3 2011, four in week 4 2011, four in week 5 2011 and one in week 6 2011. Table 4 outlines the influenza associated deaths by HSE‐Area for the 2010/2011 influenza season to date.
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http://www.hpsc.ie/hpsc/A-Z/Respira...lanceReports/20102011Season/File,12362,en.pdf
Re: Influenza Surveillance Reports 2010-2011 - Weeks 40 - 5; 18 fatalities
Influenza Surveillance in Ireland ? Weekly Report
Influenza Week 6 2011 (7th ? 13th February 2011)
Summary
?
Influenza activity has continued to decline in Ireland during week 6 2011.
oThe sentinel GP influenza‐like illness (ILI) consultation rate was 50.3 per 100,000 population in week 6 2011, a decrease from the updated rate of 79.8 per 100,000 reported during week 5 2011.
oILI rates have decreased in all age groups, with the exception of those aged 65 years or older.
oILI rates remain above baseline levels.
oThe proportion of influenza?related calls to GP Out‐of‐Hours services decreased in week 6 2011, coinciding with the decrease in sentinel GP ILI consultation rates.
oThe proportion of influenza positive specimens detected by the NVRL decreased further in week 6 2011 to 13.9%, compared to 20.4% the previous week.
oInfluenza B is the predominant circulating influenza type in Ireland, accounting for 73.1% of all positive influenza specimens detected by the NVRL in week 6 2011.
oThe weekly number of hospitalised cases of influenza decreased to 29 in week 6 2011, from 59 in the previous week.
oTo date (February 16th 2011) this season, 884 confirmed influenza cases have been hospitalised, 118 cases have been admitted to ICU and 22 deaths have been reported to HPSC.
oNo new outbreaks of influenza/ILI were reported during week 6 2011. As of February 16th 2011, 14 influenza/ILI outbreaks have been reported to HPSC this season.
oThe proportion of respiratory syncytial virus (RSV) positive detections increased slightly in week 6 2011.
...
Of the 53 GP sentinel specimens taken during week 6 2011, 21 (39.6%) were positive for influenza: 2 (9.5%) influenza A (H1N1 2009) and 19 (90.5%) influenza B. Of the 322 non‐sentinel specimens taken during week 6 2011, 31 (9.6%) were positive for influenza: 10 (32.3%) A (H1N1 2009), 2 (6.5%) influenza A (unsubtyped) and 19 (61.3%) B. Forty‐five percent (17/38) of all influenza B positive specimens (sentinel and non sentinel) detected during week 6 2011 were from patients aged less than 15 years.
To date this season, 6349 sentinel and non‐sentinel specimens have been tested by the NVRL, 1898 (29.9%) specimens tested positive for influenza: 1356 influenza A (H1N1 2009), 35 influenza A (H3), 28 influenza A (unsubtyped) and 479 influenza B. Of the 1898 positive influenza specimens, 1419 (74.8%) were influenza A and 479 (25.2%) were influenza B (figures 3 & 4). To date this season, six influenza B cases were co‐infected with influenza A: 5 with influenza A (H1N1 2009) and one with influenza A (unsubtyped).
The NVRL has tested seven non‐sentinel specimens from six confirmed influenza A (H1N1 2009) cases for antiviral resistance. All six patients were hospitalised and admitted to intensive care. One (14.3%) specimen was resistant to oseltamivir, carrying the H275Y mutation.
...
As of 16th February 2011 (09:00), HPSC has been notified of 118 hospitalised patients admitted to critical care units with confirmed influenza, 104 of whom are adults and 14 are paediatric cases. Twenty‐one (17.8%) of the 118 cases are currently in ICU??. Eighty‐nine of the 118 (75.4%) cases have underlying medical conditions, 80 adults and nine paediatric cases. The underlying medical conditions include: chronic respiratory disease, chronic heart disease, immunosuppression, pregnancy, metabolic disorders and morbid obesity.
...
HPSC has been informed of 22 influenza associated deaths to date this season (as of 16/02/2011), 17 influenza A (H1N1 2009), one co‐infection of influenza A (H1N1) and influenza B, one influenza A (unsubtyped) and three influenza B. One death was in a patient in the 0‐4 year age group, 16 patients were in the 15‐64 year age group and five patients were aged 65 years and older. Eighteen deaths occurred in patients with underlying medical conditions. One death occurred in week 52 2010, one in week 1 2011, five in week 2 2011, six in week 3 2011, four in week 4 2011, four in week 5 2011 and one in week 6 2011. Table 4 outlines the influenza associated deaths by HSE‐Area for the 2010/2011 influenza season to date.
...
http://www.hpsc.ie/hpsc/A-Z/Respira...lanceReports/20102011Season/File,12362,en.pdf