For the first time since February 8, Michigan’s seven-day average positivity rate in coronavirus diagnostic tests is now 4%.
In the past three and a half weeks, the rate has ranged from 3.3% to 3.9%.
Along with the increase in the positivity rate, the seven-day average of new cases also increased. It is currently 1,210, an increase of 11% compared to the previous week’s 1,095 average. It is the first time in four weeks that the seven-day average exceeds 1,200.
The statewide seven-day average positivity rate on coronavirus diagnostic tests is now 4% compared to 3.5% a week ago today.
Below is a more detailed analysis of the data at the county level, based on two of the metrics used by the Michigan Department of Health and Human Services.
First, take a look at the average seven-day positivity rates by municipality, grouped by the state’s metric.
- Level E (more than 20%): None.
- Level D (15-20%): None.
- Level C (10-15%): Missaukee.
- Level B (7-10%): 11 counties, from largest to smallest – Kalkaska, St Joseph, Roscommon, Newaygo, Luce, Huron, Cass, Tuscola, Lapeer, Cheboygan and Shiawassee.
- Level A (3-7%): 48 counties, from largest to smallest – Livingston, Hillsdale, St Clair, Gogebic, Wexford, Berrien, Montmorency, Macomb, Calhoun, Allegan, Kalamazoo, Genesee, Bay, Ingham, Crawford, Arenac, Oceana, Wayne, Sanilac, Saginaw, Monroe, Osceola, Van Buren, Eaton, Kent, Mecosta, Lenawee, Midland, Leelanau, Jackson, Benzie, Antrim, Barry, Clinton, Gladwin, Oakland, Lake, Clare, Mason, Grand Traverse, Branch, Alcona, Ottawa, Otsego, Presque Isle, Ionia, Iosco and Ontonagon.
- Low (less than 3%): 23 counties, from largest to smallest – Montcalm, Delta, Muskegon, Houghton, Isabella, Emmet, Mackinac, Baraga, Gratiot, Washtenaw, Alpena, Charlevoix, Menominee, Ogemaw, Dickinson, Chippewa, Manistee, Algiers, Iron, Marquette, Keweenaw, Oscoda and Schoolcraft.
The chart below allows you to search for any county by name to see the average seven-day positivity rate for February 24 to March 2. The graph compares the average of the last seven days with the average of the previous week.
The interactive map below shows the average test fee of seven days per county. You can place your cursor over a county to see the underlying data.
New cases per capita
New daily cases per capita is another metric used by the Michigan Department of Health and Human Services to assess coronavirus risk.
This metric calculates the average number of new cases per 1 million residents.
The levels for each municipality:
- Level E (more than 150 cases per million): 17 counties, from largest to smallest – Missaukee, Newaygo, Sanilac, St. Joseph, Kalkaska, Calhoun, Crawford, Bay, Cass, Tuscola, Lenawee, Monroe, Berrien, Lapeer, Gogebic , Antrim and Shiawassee.
- Level D (70 to 149 cases per million): 37 counties – Midland, Macomb, St. Clair, Livingston, Roscommon, Saginaw, Cheboygan, Barry, Jackson, Wexford, Genesee, Grand Traverse, Montmorency, Ingham, Huron, Allegan, Kalamazoo , Wayne, Kent, Hillsdale, Ionia, Eaton, Arenac, Oakland, Osceola, Ottawa, Washtenaw, Van Buren, Gladwin, Houghton, Lake, Clinton, Benzie, Mecosta, Delta, Oceana and Mason.
- Level C (40 to 69 cases per million): 15 counties – Otsego, Keweenaw, Isabella, Charlevoix, Branch, Montcalm, Clare, Emmet, Schoolcraft, Mackinac, Gratiot, Alpena, Leelanau, Presque Isle and Chippewa.
- Level B (20 to 40 cases per million), six counties: Marquette, Oscoda, Muskegon, Alger, Alcona and Ontonagon.
- Level A (7 to 20 cases per million): Menominee, Manistee, Iron and Dickinson.
- Low (below 7 boxes per million): Ogemaw, Iosco, Luce and Baraga.
Here is an online database that allows readers to see the number of new coronavirus cases in the past seven days compared to the previous week, as well as the adjusted per capita number for the population. The arrows indicate whether the total number of new cases reported in the past seven days has increased or decreased compared to the previous seven days.
Current scores are based on new cases reported from February 25 to March 3. The map below is shaded based on the six levels of the state. The arrows indicate whether the total number of new cases reported in the past seven days has increased or decreased compared to February 18th and 24th.
Readers can place the cursor over a county to see the underlying data. (Hint: you can drag the map with the cursor to see the entire UP)
Below are online databases that allow readers to query county-level data for each of the past 30 days.
Overall score
All eight MI Start regions in Michigan are now at Level D in the state’s overall risk assessment.
When assigning risk scores, the Michigan Department of Health and Human Services analyzes factors such as new cases and deaths per capita, test positivity rates, number of tests administered, and emergency department visits for COVID-19 symptoms. The scale used by the MDHHS has six levels – “low” plus Levels AE.
(MI Start Districts in the state: Region 1 is the Detroit region; Region 2 is Grand Rapids; Region 3, Kalamazoo; Region 4, Saginaw; Region 5, Lansing; Region 6, Traverse City; Region 7, Jackson and Region 8, the Upper Peninsula.)
Cases per day was reported to the state
The first is a graph showing new cases reported to the state each day for the past 30 days. This is based on when a confirmed coronavirus test is reported to the state, which means that the patient first became ill days before.
You can access a chart for any county and place your cursor over a bar to see the date and number of cases.
(In some cases, a county reported a negative number (decline) in new daily cases, after a retroactive reclassification by the Michigan Department of Health and Human Services. In those cases, we subtract cases from the previous date and put 0 on the reported date.)
The next graph below shows new cases in the last 30 days based on the onset of symptoms. In this graph, the numbers for the most recent days are incomplete due to the time lag between people getting sick and getting a result of the confirmed coronavirus test, which can take up to a week or more.
You can access a chart for any county and place your cursor over a bar to see the date and number of cases.
More localized maps
Below are two maps created by the EpiBayes research group at the University of Michigan’s Department of Epidemiology, which has access to sub-county data collected by the Michigan Department of Health and Human Services.
Interactive maps divide the state into 10-kilometer hexogons to provide a more localized view of where coronavirus cases are occurring. You can click here to access the research project website.
The first map looks at confirmed and probable cases of coronavirus in the past week. You can click on a hexagon to see the underlying data.
You can use the triangle button in the upper right corner of the map to switch to the second map, which shows the total confirmed cases of coronavirus and deaths since the start of the pandemic.
Last daily report
On Saturday, March 6, the state reported 1,280 new cases of coronavirus and 56 deaths.
The map below shows the total confirmed cases of coronavirus and deaths since the beginning of the pandemic. You can place your cursor over a county to see the underlying numbers.
For more data across the state, visit the MLive coronavirus data page, here. To find a test site near you, check the state’s online test finder here, send an email to [email protected] or call 888-535-6136 between 8 am and 5 pm on weekdays.
For more data on COVID-19 in Michigan, visit https://www.mlive.com/coronavirus/data/.
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