The number of people diagnosed with the coronavirus COVID-19 in Michigan increased 34% in one day, reaching 1,791 on Tuesday, March 24, up from 1,328 the day before.

Twenty-four people have died, according to the state’s daily update on coronavirus numbers. That’s up from 15 on Monday.

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The Michigan Department of Health and Human Services reported 463 new cases on its daily update, the state’s biggest daily increase to date.

The numbers have spiked since last week, when the state began to significantly increase the number of people tested for the coronavirus.

With the increase in testing, “every day you’re going to see the cases in Michigan skyrocket,” said Emily Martin, an epidemiologist at University of Michigan. "It’s because we’re filling in the gaps of the data.

“So it looks like it’s skyrocketing, and that results in a lot of panic and worry and hysteria because people feel like the virus is moving faster and faster and faster, when really it’s that we’re just seeing more of the picture than before,” Martin said.

Forty-one of Michigan’s 83 counties are home to a resident who contracted coronavirus.

About 85% of the COVID-19 cases -- 1,561 of 1,791 -- are in Wayne, Oakland and Macomb counties.

There are 563 patients who are Detroit residents; 310 who live elsewhere in Wayne County; 428 who live in Oakland County and 225 in Macomb County.

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Of the 24 patients who died, eight were residents of Detroit, five in Wayne County outside of Detroit, four in Oakland County, three each in Macomb and Washtenaw counties, and one in Kent County.

Whitmer declared a state of emergency on March 10 after the first cases were identified. She has since closed schools, bars, restaurants and other establishments to prevent COVID-19 from spreading further.

On Monday, March 23, she issued a “stay-at-home” order, requiring Michigan residents to stay at home except for essential business.

There have been nearly 33,404 cases of the coronavirus and 400 deaths in the United States, according to the Center for Disease Control.

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Every state in the country has reported a COVID-19 case. States with the highest number of cases include Washington, New York, California, New Jersey and Illinois.

Coronavirus symptoms include fever, cough and shortness of breath. Many infected people exhibit mild symptoms and don’t necessarily need to be tested or treated in-person, as there’s currently no known vaccine or cure for the disease.

Read all of MLive’s coverage on the coronavirus at mlive.com/coronavirus.

Additional information is available at Michigan.gov/Coronavirus and CDC.gov/Coronavirus.

CORONAVIRUS 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.