Tarrant County Influenza Surveillance Weekly Report CDC ...
Tarrant County Public Health Division of Epidemiology and Health Information
Tarrant County Influenza Surveillance Weekly Report CDC Week 42: Oct 13-19, 2019
Influenza Activity Code: County and State Levels
Tarrant County: Week 42
Sporadic
Tarrant County: Week 41
Sporadic
Texas: Week 41
Sporadic
Respiratory Virus Activity Summary
? The percentage of reported influenza-like illness (ILI) in Tarrant County increased from 1.9%
in week 41 to 2.0% in week 42 and is currently below the 2019-2020 Tarrant County baseline (2.4%).
? The percentage of all cause school absenteeism was 3.9% during week 42 in Tarrant County.
Absenteeism due to ILI and school nurse office visits due to ILI were 1.7% and 1.0% respectively during week 42 in Tarrant County.
? The percentage of rapid flu test positives in Tarrant County increased from 2.3% in week 41 to
2.6% in week 42.
? During the 2019-2020 influenza season, 0 Tarrant County influenza-associated pediatric
deaths have been reported. As of week 41, 0 influenza-associated pediatric deaths have been reported in Texas, with a total of 0 reported nationwide for the 2019-2020 season.
? During the 2019-2020 influenza season, 0 influenza outbreaks have been reported in Tarrant
County schools and 0 localized influenza outbreak has been reported within institutions in Tarrant County.
? Since last report, 8 surveillance specimens were tested by The North Texas Regional
Laboratory. The following types and number of viruses were detected in these specimens: Influenza B (1). Cumulatively this season, the North Texas Regional Laboratory at Tarrant County Public Health has tested 24 surveillance specimens and of these, 2 have been positive for influenza.
? In Texas during week 41, the proportion of outpatient visits for ILI, 2.5%, was below the state
baseline of 4.8%.
? Nationally during week 41, 3.4% of specimens tested and reported to the CDC were positive
for influenza. The proportion of outpatient visits for ILI (1.5%) was below the national baseline (2.4%). The proportion of deaths in week 40 attributed to pneumonia and influenza from the National Center for Health Statistics (4.7%) was below the epidemic threshold (5.7%).
% ILI
Influenza Like Illness (ILI): Local and State Levels
15.0% 14.0% 13.0% 12.0% 11.0% 10.0%
9.0% 8.0% 7.0% 6.0% 5.0% 4.0% 3.0% 2.0% 1.0% 0.0%
Graph 2. Texas and Tarrant County % ILI
Tarrant County % ILI Texas % ILI
Texas Baseline Tarrant County Baseline
33 35 37 39 41 43 45 47 49 51 01 03 05 07 09 11 13 15 17 19 21 23 25 27 29 31 33
Aug Sept Oct
Nov Dec
Jan
Feb March April May June July
Aug
CDC Week
100.0% 80.0%
5.0% 25.5%
60.0% 40.0%
39.5%
Graph 3. ILI % by Age Groups, Tarrant County
4.9%
4.8%
2.5%
4.4%
3.9%
3.0%
2.8%
29.1%
31.6%
27.8%
36.9%
32.9%
35.2%
35.9%
30.2%
32.7%
38.0%
27.4%
32.4%
28.1%
29.7%
ILI %
20.0%
30.0%
35.8%
31.0%
31.6%
31.2%
30.8%
33.7%
31.6%
0.0%
35
36
37
38
39
40
41
42
CDC Week
Age 0-4
Age 5-24
Age 25-64
Age >65
In week 42, 2.0% of visits to health care providers were due to ILI. ILI levels are currently below the county established baseline of 2.4% and are lower than the state of Texas levels from the week prior. In Tarrant County, of the 434 reported patients presenting with ILI during week 42, the age group with the largest percentage of the reported ILI patients, 35.9%, was the 25-64 age group.
NOTE: Tarrant County ILI activity is assessed using information provided by surveillance participants and the Electronic Surveillance System for the Early Notification of Community-based Epidemics (ESSENCE). For week 42, 23 surveillance participants - 18 Hospitals, 2 Colleges/Universities, 2 Emergency/Urgent Care Centers, and 1 Business - reported ILI information to Tarrant County Public Health. Texas ILI activity is assessed using information provided by a network of providers . For week 41, 101 providers reported information to the Texas Department of State Health Ser-
2
% ILI
Tarrant County Historical ILI and ESSENCE Geographical Distribution Map
14.0% 13.0% 12.0% 11.0% 10.0%
9.0% 8.0% 7.0% 6.0% 5.0% 4.0% 3.0% 2.0% 1.0% 0.0%
Graph 4. Tarrant County % of patient visits due to ILI during flu season 2016-2017 through 2019-2020
2016-2017 Season 2017-2018 Season 2018-2019 Season 2019-2020 Season
Tarrant County Baseline
40 41 42 43 44 45 46 47 48 49 50 51 52 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
CDC Week
Map 1. Tarrant County ER ILI Cases by Zip Code, Week 42
Zip codes with 5 cases are assigned 0. Tarrant County ILI data by zip code is obtained from ESSENCE and includes ILI numbers from 46 hospitals that voluntarily provide data based on chief complaints of Tarrant County residents admitted to Emergency Departments in North Central Texas. Zip code population data is obtained from American Community Survey 2017 5 year estimate.
3
5.0%
Rapid Influenza Test Results and School Absenteeism
Graph 5. Absenteeism and ILI, Tarrant County
4.0%
3.0%
2.0%
1.0%
0.0%
40
41
42
Average Daily % Absent Average Daily % ILI School Nurse Visits
43
44
45
46
CDC Week
Average Daily % Absent due to ILI
For week 42, 10 school districts provided general absenteeism data, 9 school districts provided data regarding absenteeism due to ILI, and 9 school districts provided data regarding nurses' office visits due to ILI.
Table 1. Influenza Rapid Test Results, Tarrant County
CDC Week Number
40 (Sept 29-Oct 5)
41 (Oct 6-12)
42 (Oct 13-19)
# Influenza Tests Performed
850
828
1253
% Influenza Positive
2.2%
2.3%
2.6%
# Influenza A Positive
4
6
8
% Influenza A Positive
21.1%
31.6%
25.0%
# Influenza B Positive
15
13
24
% Influenza B Positive
78.9%
68.4%
75.0%
# Non-differentiated Positive
0
0
0
% Non-differentiated Positive
0.0%
0.0%
0.0%
NOTE: Tarrant County rapid influenza test results are reported weekly by influenza surveillance participants. For CDC week 42, rapid influenza test results were reported by 16 hospitals, 2 Emergency/Urgent Care Centers, and 2 colleges/ universities.
4
Influenza Confirmatory Test Results: Tarrant County
Table 2. North Texas Regional Laboratory: Respiratory Virus Results1
Number of Specimens Tested Positive Specimens
Current Week 8
1 (12.5%)
2019-2020 Season 24
7 (29.2%)
Influenza A Influenza B
0 (0.0%) 1 (100.0%)
0 (0.0%) 2 (28.6%)
Respiratory Syncytial Virus
0 (0.0%)
0 (0.0%)
Adenovirus
0 (0.0%)
1 (14.3%)
Human Metapneumovirus
0 (0.0%)
0 (0.0%)
Parainfluenza-1
0 (0.0%)
1 (14.3%)
Parainfluenza-2
0 (0.0%)
0 (0.0%)
Parainfluenza-3
0 (0.0%)
0 (0.0%)
Rhinovirus
0 (0.0%)
Inconclusive2
0 (0.0%)
1 Laboratory results based on real-time PCR analysis; information is -for the 2019-2020 season. 2 Inconclusive for influenza A and influenza B; not included in positive specimens count.
NOTE: Percentages do not add up to 100% due to co-infections
3 (42.9%) 0 (0.0%)
Table 3. North Texas Regional Laboratory: Influenza Results1
Current Week
2019-2020 Season
Influenza A
0
0
Influenza A H1
-
-
Influenza A H3
-
-
Influenza A, Inconclusive subtype
-
-
Influenza A, Unsubtypeable2
-
-
Influenza B
1
2
Influenza B Yamagata3
-
-
Influenza B Victoria3
-
-
Influenza B, Inconclusive
-
-
1 Laboratory results based on real-time PCR analysis; information is for the 2019-2020 season. 2 Influenza A subtype not determined; further analysis pending 3 Influenza B genotyping is only included in current week column if genotyping occurred in the same week as original PCR testing.
Graph 6. North Texas Regional Laboratory: Influenza Virus Results1
10
100%
9
Infl uenza A H1
90%
8
Infl uenza A H3
80%
7
Infl uenza A, Inconclusive subtype 70%
6
Infl uenza B
60%
5
Percent Pos i tive
50%
4
40%
3
30%
2
20%
1
10%
0
0%
40 42 44 46 48 50 52 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38
Oct
Nov
Dec
Jan
Feb March April May
June July
Aug
Sept
CDC Week
5
Number of Positive Influenza Specimens
% of Positive Influenza Specimens
................
................
In order to avoid copyright disputes, this page is only a partial summary.
To fulfill the demand for quickly locating and searching documents.
It is intelligent file search solution for home and business.
Related download
- cdc fluview weekly report influenza like illness ili
- weekly influenza report week 1
- alabama s weekly influenza report
- weekly influenza report week 5 indiana
- georgia weekly public health influenza report
- influenza surveillance report
- overview of influenza surveillance in the united states
- tarrant county influenza surveillance weekly report cdc
- 2017 2018 influenza surveillance report week 52
- cdc fluview weekly report influenza associated pediatric
Related searches
- cdc weekly influenza surveillance report
- cdc influenza surveillance map
- illinois influenza surveillance report
- tarrant county medical examiner case
- tarrant county coroner death reports
- tarrant county death records
- tarrant county medical examiner cases
- death certificate tarrant county texas
- tarrant county medical examiner public
- tarrant county medical examiner lookup
- tarrant county public records
- tarrant county clerk deed search