Virginia Department of Health Weekly Influenza Activity Report

Virginia Department of Health Weekly Influenza Activity Report

Report Generated November 3, 2022 The Virginia Department of Health (VDH) conducts influenza surveillance to provide situational awareness, inform prevention strategies, and prepare for a potential pandemic. These efforts include collecting and analyzing data on visits to emergency departments (EDs) and urgent care centers (UCCs) for an influenza-like illness (ILI), laboratory results of confirmatory tests, suspected and confirmed outbreaks, and pediatric and adult deaths.

What are the main points about influenza activity in Virginia right now?

During the week ending October 29, 2022 (week 43), Virginia was at Very High ILI activity level. For more information please visit . During the week ending October 29, 2022 (week 43), Virginia reported 6.8% of ED and UCC visits were for ILI.

During the week ending October 29, 2022, the highest ILI intensity level observed in any region was 10 (High).

During the week ending October 29, 2022 (week 43), there were 5 regions above threshold for ILI visits.

The largest proportion of visits by age group for ILI during the week ending October 29, 2022 (week 43) was observed in the 0-4 years age group with 19.1% of total visits.

Virginia received 1,635 positive confirmatory lab reports during the week ending October 29, 2022 (week 43). There have been 2,808 infections in Virginia during the 2022-23 flu season to date, a majority of these have not been subtyped meaning that a predominant strain cannot be identified.

Virginia investigated 18 influenza outbreaks during the week ending October 29, 2022 (week 43).

Virginia investigated a total of 27 outbreaks during the 2022-23 flu season. VDH has reported 0 influenza-associated pediatric deaths during the 2022-23 flu season.

VDH has received report of 0 pneumonia, influenza, and/or COVID-19-associated deaths during the 2022-23 flu season.

Any questions about this report or the data it contains should be directed to flu@vdh..

For more details on the data and methods used in this report, please see the Additional Information tab.

Virginia Department of Health Weekly Influenza Activity Report

Report Generated November 3, 2022

How many people are seeking care for an influenza-like illness (ILI)?

Percent of Medical Visits for Influenza-like Illness by Flu Season

8.0% 6.0% 4.0%

Flu Season

2022-23 2021-22 2020-21 2019-20 2018-19

Percent ILI

2.0%

0.0%

41 44 47 50

1

4

7

10 13 16

19 22

25 28 31 34

37

Week

During the week ending October 29, 2022 (week 43), Virginia reported 6.8% of ED and UCC visits were for ILI.

During the week ending October 29, 2022, the highest ILI intensity level observed in any region was 10 (High).

Intensity Level by Region, Week ending October 29, 2022

High Low

Week Ending Date

. October 29, 2022 Show history

.

Minimal

.

Moderate .

Very High .

For more details on the data and methods used in this report, please see the Additional Information tab.

Virginia Department of Health Weekly Influenza Activity Report

Report Generated November 3, 2022

Who is seeking care for an influenza-like illness (ILI)?

Percent of Visits for Influenza-like Illness by Region, 2022-23 Flu Season

Percent ILI

8.0% 6.0% 4.0% 2.0%

Flu Season

2022-23

Region

Central Eastern Northern Northwest Southwest

0.0%

41 44 47 50

1

4

7

10 13 16

19 22

25 28 31 34

37

Week

20.0%

Percent of Visits for Influenza-like Illness by Age Group, 2022-23 Flu Season Age Group

15.0% 10.0%

0-4 5-18 19-24 25-49 50-64 65+

Percent ILI

5.0%

0.0%

41 44 47 50

1

4

7

10 13 16

19 22

25 28 31 34

37

Week

During the week ending October 29, 2022 (week 43), there were 5 regions above threshold for ILI visits.

The largest proportion of visits by age group for ILI during the week ending October 29, 2022 (week 43) was observed in the 0-4 years age group with 19.1% of total visits.

For more details on the data and methods used in this report, please see the Additional Information tab.

Virginia Department of Health Weekly Influenza Activity Report

Report Generated November 3, 2022

What influenza strains are circulating?

Confirmatory Laboratory Reports by Week and Subtype, 2021-22 Flu Season

Count of Infections

1500

Flu Season

2022-23

Flu Subtype

1000

There have been no confirmatory laboratory reports

A (H1) A (H3)

received to date during the 2018-19 flu seaon.

A (Unk)

B

B/Victoria

500

B/Yamagata

0

41 44 47 50

1

4

7

10 13 16 19 22 25 28 31 34 37

Week

Timeframe

Flu Season

Confirmatory Laboratory Reports by Subtype, 2022-23 Flu Season

100% 231

45

150

80%

Percentage of Influenza Subtypes

60%

1,089

467

250

2,506

40%

183

517

20%

0%

Central

Eastern

Northern

Northwest

Southwest

Grand Total

Virginia received 1,635 positive confirmatory lab reports during the week ending October 29, 2022 (week 43).

There have been 2,808 infections in Virginia during the 2022-23 flu season to date, a majority of these have not been subtyped meaning that a predominant strain cannot be identified.

For more details on the data and methods used in this report, please see the Additional Information tab.

Virginia Department of Health Weekly Influenza Activity Report

Where are outbreaks occuring?

Suspected or Confirmed Outbreaks by Facility Type, 2021-2022 Flu Season

Outbreaks

Flu Season

2022-23 15

Facility Type

Assisted Living

10

There have been no suspected or confirmed outbreaks

Daycare / Pre-K

to date during the 2018-19 flu seaon.

Group Home

Nursing Home

Other Facility Type

5

Other Health Care

School (K-12)

0

40 43 46 49 52

3

6

9

12 15 18 21 24 27 30 33 36 39

Virginia investigated 18 influenza outbreaks during the week ending October 29, 2022 (week 43). Virginia investigated a total of 27 outbreaks during the 2022-23 flu season.

Suspected or Confirmed Outbreaks by Region, 2022-23 Flu Season

0

Week Ending Date

October 29, 2022

Show history 1

2-3

4-6

7-9

10+

For more details on the data and methods used in this report, please see the Additional Information tab.

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