1 Houston Health Department 8000 North Stadium Drive, Houston, TX 77054 (832) 393-5169 HOUSTONHEALTH.ORG Houston/ Harris County: Texas: CDC: Increased Highlights • The Houston Health Department (HHD) conducts seasonal influenza surveillance from October (week 40) to May (week 22). In week 9, the percentage of reported influenza-like illnesses (ILI) detected in emergency centers in Houston/Harris County was 1.92% which increased from 1.66% reported in the previous week. The flu vaccine is recommended for the entire season. Influenza Like Illness (ILI) • The percentage of Athena ILI reports increased to 0.26% in week 9 compared to the previous week. Virology • HHD receives electronic lab reports from clinical labs. During week 9, the volume of flu tests received remained comparable to the previous week. Flu A activity accounts for 98% of the cumulative flu positives this season. Influenza Surveillance Report Division of Disease Prevention and Control Public Health Informatics CDC MMWR Week 09: February 24, 2019 to March 2, 2019 Influenza Activity by County, State, and National Levels
Transcript
1 Houston Health Department 8000 North Stadium Drive, Houston, TX 77054 (832) 393-5169 HOUSTONHEALTH.ORG
Houston/ Harris County: Texas: CDC:
Increased
Highlights
• The Houston Health Department (HHD) conducts seasonal influenza surveillance
from October (week 40) to May (week 22). In week 9, the percentage of reported
influenza-like illnesses (ILI) detected in emergency centers in Houston/Harris
County was 1.92% which increased from 1.66% reported in the previous week.
The flu vaccine is recommended for the entire season.
Influenza Like Illness (ILI)
• The percentage of Athena ILI reports increased to 0.26% in week 9 compared to the previous week.
Virology
• HHD receives electronic lab reports from clinical labs. During week 9, the volume of flu tests received remained comparable to the previous week. Flu A activity
accounts for 98% of the cumulative flu positives this season.
Influenza Surveillance Report
Division of Disease Prevention and Control Public Health Informatics
CDC MMWR Week 09: February 24, 2019 to March 2, 2019
Influenza Activity by County, State, and National Levels
2 Houston Health Department 8000 North Stadium Drive, Houston, TX 77054 (832) 393-5169 HOUSTONHEALTH.ORG
During week 9, 1.92% of emergency center (EC) visits were due to influenza-like illness (ILI)
complaints. Of the 2384 patients presenting with ILI, the age group that recorded the most EC visits
was the 05 to 17 years old (35%). Females accounted for 54% of patients presenting with ILI.
1.92%
0.00%
0.50%
1.00%
1.50%
2.00%
2.50%
3.00%
20
18
-21
20
18
-22
20
18
-23
20
18
-24
20
18
-25
20
18
-26
20
18
-27
20
18
-28
20
18
-29
20
18
-30
20
18
-31
20
18
-32
20
18
-33
20
18
-34
20
18
-35
20
18
-36
20
18
-37
20
18
-38
20
18
-39
20
18
-40
20
18
-41
20
18
-42
20
18
-43
20
18
-44
20
18
-45
20
18
-46
20
18
-47
20
18
-48
20
18
-49
20
18
-50
20
18
-51
20
18
-52
20
19
-01
20
19
-02
20
19
-03
20
19
-04
20
19
-05
20
19
-06
20
19
-07
20
19
-08
20
19
-09
ILI P
erce
nt
(%)
CDC MMWR Week
Percent
28%
35%
23%
8%
6%
Age group
00-04 years
05-17 years
18-44 years
45-64 years
65+ years
54%
46%
Gender
Female
Male
Syndromic Surveillance: ILI activity trend in 2018-2019
Syndromic Surveillance: 2018-2019 Influenza Season Age and Gender Distribution
NOTE: ILI activity is assessed using information provided by the Southeast Texas Syndromic Surveillance System and includes data from 65
hospitals and 17 school-based clinics. Influenza-like illness (ILI) is defined as the mention of fever AND cough, OR fever AND sore throat, OR
flu in the patient’s Emergency Department (ED) chief complaint. These data do not represent laboratory confirmed cases of influenza nor do
they represent all ED visits in Houston/Harris County.
3 Houston Health Department 8000 North Stadium Drive, Houston, TX 77054 (832) 393-5169 HOUSTONHEALTH.ORG
During week 9, the ZIP codes with the highest percent of ED visits (3.38 or greater) were:
Syndromic Surveillance: Geographic Distribution Map of ILI
NOTE: Houston/Harris County ILI report distribution map was created using data provided by the Southeast Texas
Syndromic Surveillance System and includes data from 65 hospitals and 17 school-based clinics. This map reflects the
number of ILI cases from each residential zip code during the current week of reporting. Influenza-like illness (ILI) is
defined as the mention of fever AND cough, OR fever AND sore throat, OR flu in the patient’s ED chief complaint.
These data do not represent laboratory confirmed cases of influenza nor do they represent all ED visits in
Houston/Harris County.
4 Houston Health Department 8000 North Stadium Drive, Houston, TX 77054 (832) 393-5169 HOUSTONHEALTH.ORG
In week 9, ILI accounted for 0.26% of outpatient visits in the Athena network. The total count of ILI
visits reported within the network was 25.
0.26%
0.00%
0.10%
0.20%
0.30%
0.40%
0.50%
0.60%
ILI P
erce
nt
Week Start Date
0
5
10
15
20
25
30
35
40
45
50
46 47 48 49 50 51 52 1 2 3 4 5 6 7 8 9
ILI C
ou
nt
Week
Age: 65 or older
Age: 50 - 64
Age: 18 - 49
Age: 5 - 17
Age: 0 - 4
Athena: ILI percentage per week from 2017-19
Athena: ILI per week by age group
5 Houston Health Department 8000 North Stadium Drive, Houston, TX 77054 (832) 393-5169 HOUSTONHEALTH.ORG
NOTE: Data on student ILI and influenza cases is collected from 306 schools within Houston Independent school district.1 School will be counted more than once if more than one case from the same school is reported during the same reporting period.
Flu near You (FNY) is a participatory surveillance tool that compliments traditional disease surveillance. The count
of Flu Near You (flunearyou.org) users reporting ILI in the week of 02/24/2019 increased from 16 to 28 in the
previous week. See the last page for information on how to participate.
Table 1: ILI and Influenza Cases by Type and School Type1 per Month
School surveillance for ILI began in October for the current flu season. In February, a total of 726 cases were
reported. The highest number of cases (531) were among elementary school students.
28
0
20
40
60
80
100
120
140
160
180
200
1/2
/20
17
1/2
3/2
01
7
2/1
3/2
01
7
3/6
/20
17
3/2
7/2
01
7
4/1
7/2
01
7
5/8
/20
17
5/2
9/2
01
7
6/1
9/2
01
7
7/1
0/2
01
7
7/3
1/2
01
7
8/2
1/2
01
7
9/1
1/2
01
7
10
/2/2
01
7
10
/23
/20
17
11
/13
/20
17
12
/4/2
01
7
12
/25
/20
17
1/1
5/2
01
8
2/5
/20
18
2/2
6/2
01
8
3/1
9/2
01
8
4/9
/20
18
4/3
0/2
01
8
5/2
1/2
01
8
6/1
1/2
01
8
7/2
/20
18
7/2
3/2
01
8
8/1
3/2
01
8
9/3
/20
18
9/2
4/2
01
8
10
/15
/20
18
11
/5/2
01
8
11
/26
/20
18
12
/17
/20
18
1/7
/20
19
1/2
8/2
01
9
2/1
8/2
01
9
ILI C
ou
nt
Week Start Date
ILI
Month Total
Cases
Lab
Confirmed Flu A Flu B A+B Unclassified
Elementary
Schools
Middle
Schools
High
Schools
Multi-
level
Schools # %
Oct 66 15 23% 2 4 0 8 54 2 4 6 Nov 64 11 17% 5 1 1 52 55 0 4 5 Dec
7 Houston Health Department 8000 North Stadium Drive, Houston, TX 77054 (832) 393-5169 HOUSTONHEALTH.ORG
The Houston Influenza Surveillance Weekly Report is available on the
Houston Health Department web site at:
https://www.houstontx.gov/health/Epidemiology
Flu Near You is a participatory surveillance (crowd sourcing) tool which complements traditional disease surveillance activities. Registered users can obtain real-time information on flu activity and influenza vaccines in the Greater Houston Metropolitan Area. Flu Near You features include: MAP CASES
Report symptoms Find vaccines
Map flu cases in the Greater Houston Metropolitan area
Get flu news
Share on social media This season HHD invites you to register for Flu Near You at https://flunearyou.org
NOTE: Influenza-like Illness (ILI) is defined as fever (temperature ≥ 100°F) plus a cough OR a sore throat, in the absence of a known cause other than influenza. Houston ILI baselines were determined using the same method as the Centers for Disease Control and Prevention Regional ILI
baseline. Data was obtained or accessed through the Southeast Texas Syndromic Surveillance System. However, any conclusions drawn from use of this data do not represent the official views of any consortium member jurisdiction. Additional information regarding Houston, Texas and national ILI activity can be accessed at: http://www.houstontx.gov/health/ http://www.dshs.texas.gov/IDCU/disease/influenza/surveillance/2019.aspx http://www.cdc.gov/flu/weekly/ http://www.who.int/csr/don/en/
*Below baseline means the % of visits for ILI is below the region-specific baseline of 4.0%. https://www.cdc.gov/flu/weekly/overview.htm The numbers for pediatric flu-related deaths may change as information becomes available.
** Flu-related deaths in adults are not required to be reported to health department. Numbers for flu-related deaths may change as information becomes available.
![High Performance Inverter FRENIC-Ace · HHD ND HD HND HHD ND HD HND HHD ND, HND HD HHD ND HD HND HHD ND HD HND HHD ND HD HND HHD ND HD HND HHD Type Nominal applied motor *1 [kW(HP)]](https://static.documents.pub/doc/80x56/5f62ecd88b73466e3601a9ce/high-performance-inverter-frenic-ace-hhd-nd-hd-hnd-hhd-nd-hd-hnd-hhd-nd-hnd-hd.jpg)
![Ma^ ;hhd h Ahnkl Zg]](https://static.documents.pub/doc/80x56/5e56ea6f1603a837c811a40e/ma-hhd-h-ahnkl-zg-.jpg)
