Thursday, Oct. 22, coronavirus data by Michigan county: Kalamazoo, Berrien, near-red St. Joseph
Seventy-three of Michigan’s 83 counties are reporting accelerated coronavirus rates, including a dozen counties at the highest risk level for the spread of COVID-19, based on a metric developed by the Harvard Global Health Initiative.
Kent, Calhoun, Cass and Mecosta are among the hardest hit counties as of Wednesday, October 22. The four Lower Peninsula counties are coded red on the map below, meaning they are averaging more than 25 new cases per 100,000 people per day over the past week.
In the Upper Peninsula, 10 counties are in that same red risk level. They understand Dickinson (82 cases per 100,000 population), Iron (72), Delta (54), Marquette (54), Algiers (39), Menominee (42), Gogebic (37), Mackinac (36), Ontonagon (35) and Luke (25).
Among counties with significant increases:
- Marquette has increased by 163%, from 96 new cases last week to 252 new cases in the last seven days;
- Cass increased by 103%, from 64 cases to 130 cases;
- Berrien increased by 84%, from 143 cases to 263 cases;
- Washtenaw increased 78% from 297 cases to 529 cases;
- Saginaw increased by 65% from 133 cases to 220 cases;
- Oakland rose 50%, from 721 cases to 1,080 cases.
The map below is shaded according to the Harvard Institute metric. The arrows indicate whether the total number of cases between October 15 and October 21 has increased or decreased compared to the previous seven days (October 8-October 14).
Readers can hover their cursor over a county to see the underlying data. If you don’t see the map, click here.
Latest news on coronavirus testing
The federal Centers for Disease Control says schools can safely open if fewer than 5% of coronavirus tests over the past week are positive.
Over the past week, Michigan has averaged a positive test rate of 5.13%. Of its 83 counties, 33 reported a rate of 5% or more in the past seven days, according to data from the Department of Health and Human Services.
Dickinson County leads with 17.5% of positive tests. The next three counties – Delta, Marquette and Mackinac – are also in the Upper Peninsula and have positive rates of 9.6%, 9.1% and 8.9%, respectively.
The highest rates on the Lower Peninsula are found in Cass County (8.9%), Calhoun County (8.5%) and Macomb County (7.5%).
Note: The number of positive tests does not correspond to confirmed cases, because the same patient can be tested more than once.
The map below shows the seven-day average testing rate by county. Again, readers can hover their cursor over a county to see the underlying data. If you don’t see the map, click here.
Below are online databases that allow readers to search county-level data for each of the past 20 days.
Cases per day it was reported to the state
The first is a graph showing new cases reported to the state each day for the past 20 days. This is based on when a confirmed coronavirus test is reported to the state, which means the patient first fell ill a few days prior.
You can call up a graph for any county and you can hover your cursor over a bar to see the date and number of cases. (As of Sept. 1, the state stopped reporting numbers on Sundays.)
(In a few cases, a county reported a negative (decreasing) number of new daily cases, following retroactive reclassification by the Michigan Department of Health and Human Services. In these cases, we subtracted cases of the previous date and put 0 in the reported date.)
The following table below shows new cases in the past 20 days based on symptom onset. In this chart, numbers for the most recent days are incomplete due to the lag between people getting sick and getting a confirmed coronavirus test result, which can take up to a week or more.
You can call up a graph for any county and you can hover 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 Department of Epidemiology, which has access to subcounty data collected by the Michigan Department of Health and Human Services.
The interactive maps break the state down into 10 kilometer hexagons 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 coronavirus cases over the past week. You can click on a hexagon to see the underlying data.
You can use the triangle button at the top right of the map to switch to the second map, which shows the total number of confirmed coronavirus cases and deaths since the start of the pandemic.
Last daily report
On Wednesday, the state reported 1,597 new coronavirus cases and 33 new deaths.
The state’s seven-day average is now 1,704 cases and 21 deaths per day, up from an average of 1,174 cases and 13 deaths a week ago.
The map below shows the total number of confirmed coronavirus cases and deaths since the start of the pandemic. You can hover your cursor over a county to see the numbers behind it.
For more statewide data, visit MLive’s coronavirus data page, here. To find a testing site near you, visit the state’s online test finder, here, email [email protected], or call 888-535-6136 between 8 a.m. and 5 p.m. h on weekdays.
For more data on COVID-19 in Michigan, visit https://www.mlive.com/coronavirus/data/.
Learn more about MLive:
Despite new records, Michigan almost certainly had more coronavirus cases last spring
‘Not that again:’ University of Michigan students react to order to stay put
Michigan’s coronavirus count ‘going in the wrong direction,’ says Whitmer