Influenza Activity by County, State, and National Levels

Houston/Harris County Texas National
WK # WK # WK #
Change Change Change

Highlights

The Houston Health Department (HHD) conducts seasonal influenza surveillance from October (week 40) 2016 to May (week 22) 2017. From 1776-07-01 to 1776-07-07, flu activity [change] compared to the previous week. Flu activity typically peaks in February. [vaccine message]

Influenza Like Illness Summary

  • The percentage of reported influenza-like illness (ILI) detected from emergency centers in Houston/Harris County [change] from #.#% in week [xx-1] to #.#% in week [xx]. The proportion of ILI was above the baseline of #%.
  • The percentage of ILI cases reported from outpatient visits [change] from [Mon] (#) to [Mon] (#).
  • The percentage of Flu Near You users reporting ILI [change] from #% to #%.
  • The percentage of ILI cases among HISD students [change] from [Month] (#) to [Month] (#).

Virology Summary

  • The percentage of flu test positives from sentinel providers in Houston [change] from #% in week [xx-1] to #% in week [xx].
  • In week [xx], # surveillance specimens were tested by the City of Houston Bureau of Laboratory Services. The following types and number of viruses were detected in these specimens: Influenza A H3 (#), Influenza A H1N1 (#), Influenza B (#).
  • Cumulatively this season, the City of Houston Bureau of Laboratory Services has tested # surveillance specimens. Of the # positive lab results, the A/H3 accounts for # (#%) of the positives.
  • HHD receives electronic lab reports from clinical labs. In week [xx] there was a [change] in flu positives. Flu [strain] activity accounts for #% of the flu positives this season. Week [#] had the highest count (#) of flu positives this season.
  • HHD received non-electronic lab reports from clinical labs, this season [month] showed the highest flu activity. Flu [strain] accounts for #% of flu positives.

Pediatric Mortality Summary

  • During the 2016-2017 influenza season, [number] (#) Houston influenza-associated pediatric deaths have been reported.

National Summary

  • At the national level during week [#], [#]% of specimens tested and reported to the CDC by clinical labs were positive for influenza. The proportion of outpatient visits for ILI [#]% was at the national baseline (#%) and the proportion of deaths attributed to pneumonia and influenza (#%) was [above/belo/at] the epidemic threshold of #%.

Syndromic Surveillance: YYYY to YYYY

  • Figure #. Comparison of ILI related EC visits in Houston/Harris County
## 'data.frame':    39 obs. of  2 variables:
##  $ Week: int  177640 177641 177642 177643 177644 177645 177646 177647 177648 177649 ...
##  $ ILI : int  1 2 3 4 5 6 7 8 9 10 ...
##       Week             ILI       
##  Min.   :177640   Min.   : 1.00  
##  1st Qu.:177650   1st Qu.: 6.50  
##  Median :177659   Median :11.00  
##  Mean   :177659   Mean   :11.08  
##  3rd Qu.:177669   3rd Qu.:16.00  
##  Max.   :177678   Max.   :20.00

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summary(cars)
##      speed           dist       
##  Min.   : 4.0   Min.   :  2.00  
##  1st Qu.:12.0   1st Qu.: 26.00  
##  Median :15.0   Median : 36.00  
##  Mean   :15.4   Mean   : 42.98  
##  3rd Qu.:19.0   3rd Qu.: 56.00  
##  Max.   :25.0   Max.   :120.00

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