Ronan Kelly
Retired 2020
INFLUENZA WEEKLY UPDATE
2015/39: 21?27 September 2015
https://surv.esr.cri.nz/PDF_surveillance/Virology/FluWeekRpt/2015/FluWeekRpt201539.pdf
Summary
Influenza-like illness (ILI) through sentinel surveillance was reported from 17 out of 20 District Health
Boards (DHB) with a national consultation rate of 39.3 per 100,000 (118 ILI consultations).
A total of 764 swabs were received from sentinel (20) and non-sentinel (744) surveillance.
173 influenza viruses were identified: B (not lineage-typed) (97), B/Victoria lineage (18), B/Yamagata
lineage (14), A(H3N2) (28), A(H1N1)pdm09 (3), and A (not sub-typed) (13).
INFLUENZA-LIKE ILLNESS SURVEILLANCE
In the past week, a total of 118 consultations for influenza-like illness were reported from 56 general
practices in 17 out of 20 DHBs. This gives a weekly consultation rate of 39.3 per 100,000 patient
population. Figure 1 shows the weekly national consultation rate for 2015 in comparison to the average
seasonal curve in 2000?2013 (excluding 2009). For more details on threshold definitions, see Appendix. The
current rate of influenza-like illness is just above the seasonal threshold.
2015/39: 21?27 September 2015
https://surv.esr.cri.nz/PDF_surveillance/Virology/FluWeekRpt/2015/FluWeekRpt201539.pdf
Summary
Influenza-like illness (ILI) through sentinel surveillance was reported from 17 out of 20 District Health
Boards (DHB) with a national consultation rate of 39.3 per 100,000 (118 ILI consultations).
A total of 764 swabs were received from sentinel (20) and non-sentinel (744) surveillance.
173 influenza viruses were identified: B (not lineage-typed) (97), B/Victoria lineage (18), B/Yamagata
lineage (14), A(H3N2) (28), A(H1N1)pdm09 (3), and A (not sub-typed) (13).
INFLUENZA-LIKE ILLNESS SURVEILLANCE
In the past week, a total of 118 consultations for influenza-like illness were reported from 56 general
practices in 17 out of 20 DHBs. This gives a weekly consultation rate of 39.3 per 100,000 patient
population. Figure 1 shows the weekly national consultation rate for 2015 in comparison to the average
seasonal curve in 2000?2013 (excluding 2009). For more details on threshold definitions, see Appendix. The
current rate of influenza-like illness is just above the seasonal threshold.