Michigan Flu Focus - State of Michigan
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Michigan Flu Focus
Weekly Influenza Surveillance Report
January 4, 2021 Vol. 18; No. 13
Editor: Sue Kim
Week Ending December 26, 2020 | WEEK 52
Editor email: KimS2@michigan.gov
Data provided in this report are preliminary and will be updated as additional data is received
Updates of Interest Source: CDC FluView
Note: This graph represents U.S. ILI activity levels reported to ILINet. Geographic spread of influenza has been
Seasonal influenza activity in the United suspended for the 2020-2021 influenza season
States remains lower than usual for this
Influenza-associated Pediatric Mortality
time of year.
Nationally, one (1) influenza-associated pediatric death has been
Please see the following link to CDC’s FluView
reported thus far for the 2020-2021 flu season.
report for more details:
https://www.cdc.gov/flu/weekly/
No (0) pediatric deaths have been confirmed by MDHHS for the 2020-
2021 flu season.
Influenza-like Illness Outpatient Surveillance Week Ending Dec 26, 2020
U.S. Outpatient Influenza-like Illness Surveillance Network (ILINet)
Michigan participates in ILINet, a collaborative effort between the CDC, state
and local health departments, and volunteer sentinel clinicians as part of
Michigan’s influenza surveillance. ILINet provides data on the total number of
outpatient visits to health care providers seen for any reason and the number
of those patients with influenza-like illness (ILI). ILI is defined as fever (>100°F)
and a cough and/or a sore throat without a known cause other than influenza.
Number of Reports and ILI % by Region during this time period: Michigan
Influenza
Region C N SE SW
Surveillance
No. of Reporters (13) 4 2 5 2 Regions
ILI % 0.0 1.7 0.2 0.0
Michigan Statewide ILINet and Syndromic Surveillance,
10.0
2020-2021 Michigan ILI Activity: 0.5%
9.0
ILINet
(Last week: 0.4%)
8.0
Syndromic Regional Baseline*: 1.9%
7.0
ILINet Baseline A total of 13 patient visits due to ILI were
6.0
Syndromic ILI Baseline reported out of 2,421 office visits for Week 52.
Rate
5.0
*Regional baseline is determined by calculating the
4.0 mean percentage of patient visits due to ILI during non-
3.0 influenza weeks for the previous three seasons and
adding two standard deviations
2.0
1.0
0.0 National Surveillance
6-Feb-21
3-Oct-20
10-Oct-20
17-Oct-20
24-Oct-20
31-Oct-20
2-Jan-21
9-Jan-21
16-Jan-21
23-Jan-21
30-Jan-21
7-Nov-20
13-Feb-21
20-Feb-21
27-Feb-21
13-Mar-21
20-Mar-21
27-Mar-21
3-Apr-21
10-Apr-21
17-Apr-21
24-Apr-21
15-May-21
22-May-21
6-Mar-21
1-May-21
8-May-21
14-Nov-20
21-Nov-20
28-Nov-20
5-Dec-20
12-Dec-20
19-Dec-20
26-Dec-20
In the United States, 1.6% of outpatient visits were
due to ILI (Last week: 1.5%)
Week Ending This is below the national baseline of 2.6%
Become an ILINET provider!
Contact Shelly Doebler at DoeblerM@michigan.gov
Influenza-associated Hospitalization Surveillance Week Ending Dec 26, 2020
Influenza Hospitalization Surveillance Project (IHSP) Join the
Influenza Sentinel
The CDC’s Influenza Hospitalization Surveillance Network (FluSurv-NET) provides population-
based rates of laboratory-confirmed influenza-associated hospitalizations from October 1st
Hospital Network (ISHN)!
through April 30th each year. Michigan participates as an IHSP state in FluSurv-NET for Clinton, What is it? ISHN is a group of
hospitals in Michigan that
Eaton, Genesee, Ingham, and Washtenaw Counties.
voluntarily report weekly
aggregate counts of influenza
There were no influenza-associated hospitalizations reported to MDHHS for the IHSP during positive inpatients to assist
this time period. Since October 1st, 3 (0 pediatric, 3 adult) influenza-associated hospitalizations MDHHS with statewide flu
were reported in the catchment area for the 2020-2021 season. surveillance
How it works: As a participating
hospital in the ISHN, you would
Total IHSP Cases, 2015-2016 through 2020-2021 complete a brief Survey Monkey
160
every week containing:
140 • Number of hospitalizations
with a positive influenza test
120 by age group during that time
period
Number of Cases
100 • The total number of
hospitalizations due to any
80 condition during that time
period (if available)
60
The data you provide can assist
40 providers and public health in
recognizing changes in the age or
20 geographic distribution of flu in
this population.
0
40 41 42 43 44 45 46 47 48 49 50 51 52 53 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 If your facility is interested in
MMWR Week participating or would like more
2015-16 2016-17 2017-18 2018-19 2019-20 2020-21 details, please contact Sue Kim
Washtenaw County was added in the 2017-2018 season (KimS2@michigan.gov)
Laboratory (Virologic) Surveillance Week Ending Dec 26, 2020
MDHHS BOL Virology Laboratory Data Michigan Sentinel Clinical Lab Network
Respiratory Virus Data
There were 2 new positive influenza results (0C, 0N, 2SE, 0SW) reported by the Fourteen (14) sentinel clinical labs (3SE, 2SW, 6C, 3N)
MDHHS Bureau of Laboratories (BOL) during this time period. reported for the week ending 12/26
# of Positive Respiratory Virus Results by Region SE Region
Influenza A: no activity
C N SE SW Total Influenza B: sporadic – low
H1N1 0 0 0 0 0 Parainfluenza: sporadic – low
H3N2 0 0 1 0 1 RSV: no activity
Infl B 0 0 2 0 2 Adenovirus: low
Total 0 0 3 0 3 hMPV: sporadic
Central Region
Influenza A: sporadic
Influenza Positive Test Results, 2020-2021
60 Influenza B: no activity
55 Parainfluenza: no activity
Flu A, no subtype RSV: sporadic
50
Flu A, H1N1 Adenovirus: sporadic – low
Number of Positive Specimens
45
Flu A, H3N2 hMPV: no activity
40
Flu B, no lineage SW Region
35
Influenza A: no activity
30 Flu B, Yamagata
Influenza B: no activity
25 Flu B, Victoria
Parainfluenza: no activity
20 RSV: sporadic
15 Adenovirus: sporadic
10 hMPV: no activity
5 North Region
0 Influenza A: no activity
10-Oct-20
17-Oct-20
24-Oct-20
31-Oct-20
2-Jan-21
9-Jan-21
16-Jan-21
23-Jan-21
30-Jan-21
6-Feb-21
13-Feb-21
20-Feb-21
27-Feb-21
13-Mar-21
20-Mar-21
27-Mar-21
10-Apr-21
17-Apr-21
24-Apr-21
15-May-21
22-May-21
3-Oct-20
7-Nov-20
14-Nov-20
21-Nov-20
28-Nov-20
5-Dec-20
12-Dec-20
19-Dec-20
26-Dec-20
3-Apr-21
1-May-21
8-May-21
6-Mar-21
Influenza B: no activity
Parainfluenza: no activity
RSV: no activity
Week Ending Adenovirus: no activity
Note: Based on Specimen Collection Date
Flu B lineage data will be reported based on MDHHS BOL testing runs and will be backtracked into this graph hMPV: no activityCongregate Setting Outbreaks Week Ending Dec 26, 2020
There were 0 new respiratory outbreaks (0C, 0N, 0SE, 0SW) reported to MDHHS during this time period. Respiratory outbreaks for
the 2020-2021 season are listed in the table below.
# of Congregate Setting Outbreaks by Region
Facility Type C N SE SW Total Did you know?
Schools: K-12 & College 0 0 0 0 0 Congregate setting outbreaks of
Long-term Care / viral respiratory illnesses are
0 0 0 0 0 required to be reported to your
Assisted Living Facility
Healthcare Facility 0 0 0 0 0 local health department? See:
Daycare 0 0 0 0 0 • Influenza Guidance for
Homeless Shelter 0 0 0 0 0 Healthcare Providers
Correctional Facility 0 0 0 0 0 • Guideline for influenza and
Other 0 0 0 0 0 Respiratory Virus Outbreaks in
Total 0 0 0 0 0 Long-Term Care Facilities
Note: Outbreaks associated with COVID-19 are not reported in this table (above) or graph (below).
Congregate Setting Outbreaks by Region, 2020-2021
14
C
12 N
SE
10 SW
# Outbrekas
8
6
4
2
0
Week EndingFlu Bytes Week Ending Dec 26, 2020
Influenza Vaccine Updates Influenza News Blast Influenza Burden Estimates
MDHHS COVID-Vaccine Website • FDA Expands Approval of Baloxavir
Marboxil to Post-Exposure Prevention The Centers for Disease Control and
MDHHS-Division of Immunization has developed a website for COVID • NEW STUDY: Flu-like Illness and Risk Prevention (CDC) have released
Vaccine updates and information. of Acute Cardiovascular Events preliminary burden estimates for
The website is www.Michigan.gov/COVIDVaccine. • 2019-2020 Flu Vaccination Coverage the 2019-2020 flu season.
• NEW STUDY: 2018-19 Flu VE in
The website includes provider resources, COVID Vaccine FAQs, LTC Children Between October 1, 2019 through
Pharmacy Program resources, and more. • Global Flu Update- WHO April 4, 2020 it is estimated that
• 2020 NFID Influenza News Conference there have been:
Additionally, the COVID Vaccine website houses the COVID Vaccine
• Hospitalized COVID-19 Patients
Dashboard. The dashboard is updated frequently and utilizes data from • 39 million – 56 million flu
Compared to Hospitalized Flu Patients
the Michigan Care Improvement Registry. Vaccine distribution, vaccine illnesses
• NEW STUDY: Improving Influenza
administration data, and more can be viewed on the interactive • 18 million – 26 million flu
dashboard pages. Vaccination in Children with Asthma
medical visits
Additional Resources • 410,000 – 740,000 flu
• MDHHS Influenza Webpage hospitalizations
• MDHHS Bureau of Laboratories (BOL) • 24,000 – 62,000 flu deaths
Webpage and Test Request Forms
• CDC FluView Weekly Report NOTE: The week of April 4 was the
• CDC Healthcare Professionals Flu last week in-season influenza
Toolkit burden estimates will be provided
• Immunization Action Coalition: Ask for the 2019-2020 season.
the Experts- Flu
• MDHHS- Influenza Vaccine F.A.Q. 2020-2021 preliminary burden
estimates are expected to be
View Michigan Flu Focus Report archives here. released later in the flu season.
MDHHS Contributors
Bureau of Infectious Disease Prevention Bureau of Laboratories
S. Bidol, MPH, M. Doebler, MPH, S. Kim, MPH B. Robeson, MT, V. Vavricka, MS
To be added to the distribution list, please contact
Sue Kim at KimS2@michigan.govYou can also read
