Influenza Testing & Surveillance
Bureau of Laboratories
Swine-origin Influenza A H1
Routine respiratory culture at the MDCH Bureau of Laboratories has been suspended due to increased testing for swine-origin influenza virus (S-OIV). For the most current updates, see the latest MIFluFocus report dated
June 18, 2009
.
For the latest information on the outbreak, see the MDCH
S-OIV flu page
.
Seasonal Influenza A(H1N1) Oseltamivir Resistance Update
Fourteen influenza A/H1N1 viruses from the MDCH Bureau of Laboratories have been tested for antiviral resistance at CDC for the 2008-2009 season. All 14 viruses were resistant to oseltamivir and sensitive to zanamivir, amantadine and rimantadine. These virses were collected in the SE (8) and SW (6) Influenza Surveillance Regions. One influenza A/H3N2, collected in the Central Surveillance Region, has been tested for antiviral resistance. That virus was resistant to the adamantanes (amatadine and rimantadine) and sensitive to oseltamivir and zanamivir. Antivirua resistance testing takes several weeks to complete, and thus cannot be used to guide treatment of individual patients.
Routine Seasonal Influenza Resources
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Pandemic and Avian Influenza
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Laboratory Biosafety Guidelines- These biosafety guidelines have been developed for Michigan laboratories handling and processing specimens associated with influenza.
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MDCH Bureau of Laboratories (BOL)
Influenza A Test Algorithm- This test algorithm covers seasonal influenza testing, suspect avian influenza testing, and pandemic influenza testing. It will be updated as the situation requires.
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The MDCH lab has the capacity to perform Influenza A, Influenza B, A H1, A H3, A H5 PCR as a part of our Pandemic Influenza
response. At WHO Pandemic Influenza Level 3 or Level 4 with no confirmed cases in Michigan, this
testing requires pre-approval through our Bureau of Epidemiology. (517-335-8165 or 517-335-9030, after
hours). Specific information on this testing.
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To expedite receipt of laboratory results, we urge all submitters to register for fax transmittal of reports. Fax agencies receive their reports the day testing is completed. This is especially important for those submitting specimens for H5 PCR testing. Non-fax agencies receive reports via the U.S. Post Office. This method will delay your report by several days. Registration information.
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2008-2009 Influenza Season Report
Influenza Surveillance Report - Note: this report comes out on Thursday each week.
National influenza surveillance summary information for the current week is available at:
There are medical provider sites from a variety of geographic locations throughout Michigan enrolled in the sentinel surveillance program. These providers represent private practice for adult and pediatric patients, as well as urgent and emergency care facilities, nursing homes and university health services. Michigan is now conducting routine influenza surveillance year round. Thus, MDCH requests submission of two to three specimens for influenza A and B viral culture four times during the year: early influenza season, when influenza virus is beginning to circulate; middle season, during the peak of influenza activity; late season, as influenza activity diminishes; and in the summer months. Participation in this program is voluntary. The data shown here are the results obtained by the MDCH Viral Isolation Unit from specimens submitted by participating sentinel surveillance sites. The influenza season runs from October 1 through September 30 each year.
To locate your Health Region, see the county listing at the end of this page.
Data as of June 5, 2009 for human influenza virus identification.
For the latest information on the S-OIV outbreak, see the MDCH
S-OIV flu page
.
|
Health Region
|
Inf. B
|
Human A, H1N1
|
Human A/H1^
|
Human A/H3^ |
Human A, H3N2
|
Adeno
|
Para 2
|
Para 3
|
RSV |
|
Southeast
|
24
|
55
|
8
|
3
|
1
|
1
|
0
|
2
|
4
|
|
Southwest
|
45
|
35
|
8
|
2
|
0
|
0
|
0
|
0
|
2
|
|
Central
|
14
|
23
|
2
|
0
|
1
|
0
|
0
|
0
|
3
|
|
Northern
|
36
|
49
|
7
|
1
|
1
|
0
|
0
|
1
|
2
|
^ Identified during S-OIV PCR testing.
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2008-2009 Northern Hemisphere Influenza Vaccine Components
A/Brisbane/59/2007 (H1N1) - like virus
A/Brisbane/10/2007 (H3N2) - like virus
B/Florida/4/2006 - like virus
2009-2010 Northern Hemisphere Influenza Vaccine Components
A/Brisbane/59/2007 (H1N1) - like virus
A/Brisbane/10/2007 (H3N2) - like virus
B/Brisbane/60/2008 - like virus
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Past Influenza Season Data
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Listings of Counties and Their Respective Health Regions
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Rev. 06/22/2009
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