Army Influenza -Associated Hospitalizations Reported in DRSi by Onset Week Library... · 2020. 4....
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Week ending 18 April 2020 (week 16) During week 16, 1,013 specimens were submitted for testing, which represents a 41% decrease from week 15. Influenza A represented the majority (32%) of positive specimens submitted for testing. Regional Health Command (RHC) - Central accounted for the greatest number of positive influenza A specimens (n=4). Sixty-seven percent of positive influenza A specimens were from Active Duty (AD) Service Members (SMs). Beneficiaries younger than 18 years old comprised the majority (n=10) of total positive respiratory specimens and was followed by individuals 18 to 29 years of age (n=5). No influenza-associated hospitalizations were reported. Results in this report should be interpreted with caution as laboratory data from multiple installations were unavailable. Additional Resources: APHC Influenza Reports , Centers for Disease Control, Disease Reporting System internet, ESSENCE Key: I LI -Influenza-Like Illness; DRSi- Disease Reporting System Internet; ADV-Adenovirus; RSV-Respiratory Syncytial Virus; SM-Service Member; MEDPROS– Medical Protection System; ASIMS– Aeromedical Services Information Management System; MRRS– Medical Readiness Reporting System Questions? Email APHC DEP 410-436-7605 *Data Source: MEDPROS, ASIMS, MRRS INFLUENZA-ASSOCIATED HOSPITALIZATIONS DEMOGRAPHICS Influenza Vaccination Coverage* As of 22 April 2020 N/A DoD 96% Army Active Duty 86% Army Guard 84% Army Reserve SUMMARY In week 16, regional activity was reported in Puerto Rico and 9 states. Local activity was reported in 12 states. Sporadic activity was reported in the District of Columbia, the U.S. Virgin Islands and 26 states. No activity was reported in three states. Guam did not report. So far this season, 250 hospitalizations have been reported to the DRSi; this is 50% more than the 167 hospitalizations reported last season during the same period. As of 23 April, there were no influenza-associated hospitalizations with onset dates in week 16 reported to the DRSi. During week 16 of the 2018-2019 influenza season, one hospitalization was reported. *DRSi does not capture cases older than 65 years old for influenza-associated hospitalizations. Click to enlarge image GEOGRAPHIC SPREAD AD: In week 16, 7 positive respiratory specimens from AD SMs were submitted. The majority of positive specimens were among individuals 18 to 29 years of age (n=4, 57%). Non-AD: The majority of positive respiratory specimens (n=10) among non-Active Duty beneficiaries were collected from individuals younger than 18 years of age (83%). 0 5 10 15 < 18 18-29 30-39 40-49 50-59 60+ Number of Positive Tests Age Group Positive Respiratory Specimen Results from Army MTFs by Age Group and Beneficiary Status, Week 16 AD Non-AD Ben 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 39 40 41 42 43 44 45 46 47 48 49 50 51 52 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Cases Reported Calendar Week Army Influenza-Associated Hospitalizations Reported in DRSi by Onset Week 2019-2020 AD 2019-2020 Non-AD 2018-2019 AD 2018-2019 Non-AD
Transcript of Army Influenza -Associated Hospitalizations Reported in DRSi by Onset Week Library... · 2020. 4....
Week ending 18 April 2020 (week 16)
During week 16, 1,013 specimens were submitted for testing, which represents a 41% decrease from week 15. Influenza A represented the majority (32%) of positive specimens submitted for testing. Regional Health Command (RHC) - Central accounted for the greatest number of positive influenza A specimens (n=4). Sixty-seven percent of positive influenza A specimens were from Active Duty (AD) Service Members (SMs). Beneficiaries younger than 18 years old comprised the majority (n=10) of total positive respiratory specimens and was followed by individuals 18 to 29 years of age (n=5). No influenza-associated hospitalizations were reported. Results in this report should be interpreted with caution as laboratory data from multiple installations were unavailable.
Additional Resources: APHC Influenza Reports, Centers for Disease Control, Disease Reporting System internet, ESSENCE Key: ILI -Influenza-Like Illness; DRSi- Disease Reporting System Internet; ADV-Adenovirus; RSV-Respiratory Syncytial Virus; SM-Service Member; MEDPROS– Medical Protection System; ASIMS– Aeromedical Services Information Management System; MRRS– Medical Readiness Reporting System
Questions? Email APHC DEP 410-436-7605
*Data Source: MEDPROS, ASIMS, MRRS
INFLUENZA-ASSOCIATED HOSPITALIZATIONS
DEMOGRAPHICS
Influenza Vaccination Coverage* As of 22 April 2020
N/A DoD
96% Army Active Duty
86% Army Guard
84% Army Reserve
SUMMARY
In week 16, regional activity was reported in Puerto Rico and 9 states. Local activity was reported in 12 states. Sporadic activity was reported in the District of Columbia, the U.S. Virgin Islands and 26 states. No activity was reported in three states. Guam did not report.
So far this season, 250 hospitalizations have been reported to the DRSi; this is 50% more than the 167 hospitalizations reported last season during the same period. As of 23 April, there were no influenza-associated hospitalizations with onset dates in week 16 reported to the DRSi. During week 16 of the 2018-2019 influenza season, one hospitalization was reported.
*DRSi does not capture cases older than 65 years old for influenza-associated hospitalizations.
Click to enlarge image GEOGRAPHIC SPREAD
AD: In week 16, 7 positive respiratory specimens from AD SMs were submitted. The majority of positive specimens were among individuals 18 to 29 years of age (n=4, 57%).
Non-AD: The majority of positive respiratory specimens (n=10) among non-Active Duty beneficiaries were collected from individuals younger than 18 years of age (83%).
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Army Influenza-Associated Hospitalizations Reported in DRSi by Onset Week
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Week ending 18 April 2020 (week 16) Army Influenza Activity Report U.S. Army Public Health Center
LABORATORY RESPIRATORY SPECIMEN TESTING
ILI ACTIVITY - UNITED STATES
In week 16, 1,013 respiratory specimens were tested, and 1.9% (n=19) were positive for any type of respiratory illness. Influenza A accounted for the majority of positive results in week 16 (32%, n=6); adenovirus accounted for 26% (n=5); influenza B accounted for 21% (n=4); RSV accounted for 16% (n=3); parainfluenza accounted for 5% (n=1).
Rapid antigen tests (RATs) represented 83% of positive influenza A tests, while PCR tests represented 17%.
Nationwide, 346 specimens were submitted to CDC in week 16, of which 6% (n=21) were positive. Influenza A accounted for 86% (n=18) of the total positive specimens submitted to the CDC in week 16, while influenza B accounted for 14% (n=3). In the Army population, 1.2% of 496 specimens tested for influenza A were positive.
Nationwide in week 16, 2.2% of patient visits reported through the U.S Outpatient Influenza-like Illness Surveillance Network were due to influenza-like illness. This is below the national baseline of 2.4%. Regionally, the percentage of outpatient visits for ILI ranged from 1.1% to 5.4%.
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Locations providing week 16 laboratory data as of 23 April 2020: Ft. Belvoir, Ft. Bliss, Ft. Campbell, Ft. Carson, Ft. Eustis, Ft. Huachuca, Ft. Irwin, Ft. Jackson, Ft. Leavenworth, Ft. Leonard Wood, Ft. Meade, Ft. Polk, Ft. Riley, Ft. Rucker, Ft. Sam Houston, Ft. Stewart, Ft. Wainwright, Redstone Arsenal, Tripler Army Medical Center, Walter Reed National Military Medical Center, and the US Military Academy.
*NOTE: Madigan AMC data is also received weekly, but cannot be included at this time due to access limitations from MHS Genesis.
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Proportion of Positive Influenza A Specimens for U.S. Army 2019-2020
Total Tested (2019-20)
Average Tested (2014-18)
% Influenza A Positive
Week 13 Week 14 Week 15 Week 16 Season Total
RAT 8 12 5 5 6242
Culture 0 0 0 0 279
PCR 6 0 0 1 3273
Influenza A 14 12 5 6 9794
Influenza B 20 4 2 4 6145
Adenovirus 14 6 1 5 351
Enterovirus 0 0 0 0 7
Parainfluenza 11 1 1 1 270
RSV 11 4 5 3 1754
Negative 5038 3050 1705 994 105096
Total 5108 3077 1719 1013 123417
Army MTF
Laboratory Results,
2019-20
Test Types Among
Positive Influenza A
Specimens
Week ending 18 April 2020 (week 16) Army Influenza Activity Report U.S. Army Public Health Center
LABORATORY RESPIRATORY SPECIMEN TESTING
No.: Number of specimens tested during MMWR week 16 2020.
% Pos.: Percentage of positive specimens reported during MMWR week 16 2020.
Baseline % Pos.: Percentage of positive specimens reported in MMWR week 16 during influenza seasons from September 2012 - May 2019.
Missing values indicate that specimens were not tested for the disease during the week of interest.
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Baseline %
Positive
Ft. Campbell 16 0 11.1 17 5.9 2.2 100
Ft. Jackson 6 0 0 6 0 0
Ft. Meade 3 0 0
Ft. Rucker 6 0 0 6 0 0
Ft. Stewart 28 3.6 21.7 28 3.6 2.9
Redstone Arsenal 4 0 0 4 0 0
U.S. Military Academy 1 0 0 1 0 0 100
Ft. Bliss 57 0 6.6 1 100 0 24
Ft. Carson 94 4.3 4.7 100
Ft. Huachuca 3 0 14.3 3 0 0
Ft. Irwin 6 0 33.3 5 0 0
Ft. Leavenworth 4 0 27.3 4 0 0
Ft. Leonard Wood 11 0 26.5 9 0 0
Ft. Polk 12 0 4.8
Ft. Riley 29 0 0 29 0 0
Ft. Wainwright 21 0 5.8 20 0 13.5
Tripler Army Medical Center 38 0 10.3 38 0 6.3 3 0 4.3
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RHCA Ft. Stewart 2 0 33.3
Ft. Bliss 2 0 6.1
Ft. Carson 1 0 3.6
Ft. Leonard Wood 1 0 0
Ft. Polk 7 14.3 0
Ft. Riley 1 0 0
Ft. Wainwright 21 0 0
Tripler Army Medical Center 3 0 0 3 0 2.2 100
Adenovirus
RSV
Installation
Enterovirus Parainfluenza
Installation
Influenza A
RHCC
RHCP
Region
Influenza B
Region
RHCC
RHCP
RHCA
Week ending 18 April 2020 (week 16) Army Influenza Activity Report U.S. Army Public Health Center
Public Health Command - Atlantic (RHC-A)
Public Health Command - Central (RHC-C)
Public Health Command - Europe (RHC-E)
Public Health Command - Pacific (RHC-P)
Proportion of Influenza A Positive Specimens by Week and Region, Army Medical Laboratories, 2019-2020 as Compared to 2014-2018
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50-59 0 0 355
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Total 1 1 4112
Week 16
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< 18 0 0 2079
18-29 2 1 568
30-39 0 0 675
40-49 0 0 523
50-59 1 0 378
60+ 0 0 334
Total 3 1 4557
Week 16
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Total 0 0 839
Week 16
AD Non-AD AD Non-AD AD Non-AD AD Non-AD AD Non-AD AD Non-AD AD Non-AD AD Non-AD
RHC-A 80 177 85 217 69 134 30 41 2 10 0 2 0 0 1 1
RHC-C 84 300 94 237 50 130 18 37 0 2 3 7 2 3 3 1
RHC-E 8 12 17 27 6 21 - - - - - - - - - -
RHC-P 17 45 13 34 8 19 7 5 0 0 0 0 0 0 0 0
CENTCOM - - - - - - - - - - - - - - - -
Number of Positive Influenza A Specimens by Duty Status and Public Health Command
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< 18 0 10 9868
18-29 4 1 3018
30-39 0 0 2266
40-49 2 0 1311
50-59 1 0 985
60+ 0 1 873
Total 7 12 18321
Week 16
Note: Reportable influenza cases are defined as only cases that have been hospitalized and are under the age of 65.Data as of 23 April 2020.
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Army Influenza-Associated Hospitalizations Reported in DRSi by Onset Week
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Proportion of Positive Influenza A Specimens for U.S. Army 2019-2020
Total Tested (2019-20)
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Laboratory Respiratory Specimen Testing: Weeks 13 – 16
Week 13 Week 14 Week 15 Week 16 Season Total
RAT 8 12 5 5 6242
Culture 0 0 0 0 279
PCR 6 0 0 1 3273
Influenza A 14 12 5 6 9794
Influenza B 20 4 2 4 6145
Adenovirus 14 6 1 5 351
Enterovirus 0 0 0 0 7
Parainfluenza 11 1 1 1 270
RSV 11 4 5 3 1754
Negative 5038 3050 1705 994 105096
Total 5108 3077 1719 1013 123417
Army MTF
Laboratory Results,
2019-20
Test Types Among
Positive Influenza A
Specimens
AD Non-AD AD Non-AD AD Non-AD AD Non-AD AD Non-AD AD Non-AD AD Non-AD AD Non-AD
RHC-A 80 177 85 217 69 134 30 41 2 10 0 2 0 0 1 1
RHC-C 84 300 94 237 50 130 18 37 0 2 3 7 2 3 3 1
RHC-E 8 12 17 27 6 21 - - - - - - - - - -
RHC-P 17 45 13 34 8 19 7 5 0 0 0 0 0 0 0 0
CENTCOM - - - - - - - - - - - - - - - -
Number of Positive Influenza A Specimens by Duty Status and Public Health Command
RegionWeek 9 Week 10 Week 11 Week 12 Week 13 Week 14 Week 15 Week 16
