Washington State Influenza 2015-16

[Ronan Kelly]

Week 15: April 10, 2016?April 16, 2016
http://www.doh.wa.gov/Portals/1/Documents/5100/420-100-FluUpdate.pdf

State Summary: Flu activity is decreasing


 Sixty lab-confirmed influenza deaths have been reported for the 2015-2016 season to date, including one pediatric
death.
 During week 15, 466 specimens were tested by the World Health Organization/National Respiratory and Enteric
Virus Surveillance System (WHO/NREVSS) collaborating laboratories in Washington, with 52 specimens positive
for influenza. Twenty eight specimens were positive for influenza B, 14 were positive for influenza A (H1N1), 5
were positive for influenza A (subtyping not performed), and 5 were positive for influenza A (H3N2).
 During week 15, the proportion of outpatient visits for influenza-like illness (ILI) was 0.8 percent, below the baseline
of 1.1 percent.
 Influenza is characterized as local in Washington.
..
Table 3: Number and rate of reported laboratory-confirmed influenza associated
deaths by age group, Washington, 2015-2016 season to date
Age Group(in years) // Number of Deaths // Death Rate (per 100,000 population)
0?4 // 0 // 0.0
5?24 // 1 // 0.06
25?49 // 12 // 0.52
50?64 // 18 // 1.29
65+ // 29 // 3.10
Total // 60 // 0.87
...

Comment: Numbers seem to have been fixed, however the rate for ages 50-64 has declined from last week. - Ro

 

[Ronan Kelly]

Week 16: April 17, 2016?April 23, 2016
http://www.doh.wa.gov/Portals/1/Documents/5100/420-100-FluUpdate.pdf

State Summary: Flu activity is decreasing

 Sixty two lab-confirmed influenza deaths have been reported for the 2015-2016 season to date, including one
pediatric death.
 During week 16, 236 specimens were tested by the World Health Organization/National Respiratory and Enteric
Virus Surveillance System (WHO/NREVSS) collaborating laboratories in Washington, with 23 specimens positive
for influenza. Six specimens were positive for influenza B, 12 were positive for influenza A (H1N1), three were
positive for influenza A (subtyping not performed), and two were positive for influenza A (H3N2).
 During week 16, the proportion of outpatient visits for influenza-like illness (ILI) was 0.4 percent, below the baseline
of 1.1 percent.
 Influenza is characterized as local in Washington.
...
Table 3: Number and rate of reported laboratory-confirmed influenza associated
deaths by age group, Washington, 2015-2016 season to date
Age Group(in years) // Number of Deaths // Death Rate (per 100,000 population)
0?4 // 0 // 0.0
5?24 // 1 // 0.06
25?49 // 12 // 0.52
50?64 // 19 // 1.37
65+ // 30 // 3.20
Total // 62 // 0.90
...

 

[Ronan Kelly]

Week 18: May 1, 2016?May 7, 2016
http://www.doh.wa.gov/Portals/1/Documents/5100/420-100-FluUpdate.pdf

State Summary: Flu activity is decreasing

 Sixty three lab-confirmed influenza deaths have been reported for the 2015-2016 season to date, including one
pediatric death.
 During week 18, 363 specimens were tested by the World Health Organization/National Respiratory and Enteric
Virus Surveillance System (WHO/NREVSS) collaborating laboratories in Washington, with 24 specimens positive
for influenza. Eight specimens were positive for influenza B, ten were positive for influenza A (H1N1), one was
positive for influenza A (subtyping not performed), and five were positive for influenza A (H3N2).
 During week 18, the proportion of outpatient visits for influenza-like illness (ILI) was 0.9 percent, below the baseline
of 1.1 percent.
 Influenza is characterized as local in Washington.
...
Table 3: Number and rate of reported laboratory-confirmed influenza associated
deaths by age group, Washington, 2015-2016 season to date
Age Group(in years) // Number of Deaths // Death Rate (per 100,000 population)
0?4 // 0 // 0.0
5?24 // 1 // 0.06
25?49 // 12 // 0.52
50?64 // 19 // 1.37
65+ // 31 // 3.31
Total // 63 // 0.92

...