For the third day in a row, new confirmed coronavirus cases are up again in Michigan, state health officials said.

There were 1,325 new confirmed cases of COVID-19, per data released Thursday, April 23, bringing the statewide total to 35,291. It’s the most new cases reported in a day since April 14 and the second-most new cases in the last 15 days.

Michigan is reporting 164 new deaths Thursday, as well, totaling 2,977 deaths. However, 55 of the deaths reported Thursday didn’t occur in the past day, officials said.

State officials have been reviewing death records on a weekly basis. If a resident who tested positive for the virus died, but wasn’t already on the list of coronavirus deaths, they are being added to the list.

An additional 55 cases reported Thursday were previously unreported deaths. On Tuesday, April 21, 95 previously unreported deaths were counted. April 16 death numbers included 65 previously unreported deaths, and 30 deaths reported April 10 involved prior fatalities, state officials said.

It’s unclear how much the surge in new confirmed cases is due to increased testing. Thursday’s testing numbers won’t be reported until Saturday, April 25.

The state releases the number of daily tests it completes two days after the tests are conducted. The most recent data point is from Tuesday, April 21, and shows 6,410 tests completed – the most since April 4.

About 18.3 percent of the Tuesday tests came back positive, the second-lowest daily rate this month.

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Michigan is releasing recovery data once per week. So far, 3,237 people have recovered from the virus in the state – meaning they tested positive for COVID-19 at some point, they're still alive and it's been at least 30 days since symptoms began.

Of Michigan’s 83 counties, 78 have at least one confirmed case of COVID-19 and 55 have at least one death.

Wayne, Oakland and Macomb counties remain the three hardest-hit areas in Michigan with 75.1 percent of the total confirmed cases and 82.5 percent of the state’s deaths from the virus. The trio of Southeast Michigan counties are home to 39 percent of the state’s residents.

In Detroit alone, there were 8,317 confirmed cases of COVID-19 and 799 deaths. The disproportionate number of cases in the metro Detroit area is a result of multiple factors, including the large population, more aggressive testing in those counties, proximity to a major airport and community spread of coronavirus, experts say.

The virus is disproportionately affecting African Americans. About 33 percent of cases and 40 percent of deaths in Michigan involve African Americans, who make up 14 percent of the state’s population.

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Here's a look at the Michigan counties with the most confirmed cases:

1. Wayne County: 14,994 cases (1,396 deaths)

2. Oakland County: 6,634 cases (567 deaths)

3. Macomb County: 4,862 cases (493 deaths)

4. Genesee County: 1,387 cases (144 deaths)

5. Washtenaw County: 960 cases (42 deaths)

6. Kent County: 815 cases (27 deaths)

7. Saginaw County: 507 cases (38 deaths)

8. Ingham County: 370 cases (9 deaths)

9. Livingston County: 312 cases (11 deaths)

10. Jackson County: 298 cases (14 deaths)

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For more statewide data, visit MLive’s coronavirus data page, here.

COVID-19 PREVENTION TIPS

In addition to washing hands regularly and not touching your face, officials recommend practicing social distancing, assuming anyone may be carrying the virus.

Health officials say you should be staying at least 6 feet away from others and working from home, if possible.

Carry hand sanitizer with you, and use disinfecting wipes or disinfecting spray cleaners on frequently-touched surfaces in your home (door handles, faucets, countertops) and when you go into places like stores.

Read more Michigan coronavirus coverage here

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