The first coronavillavirus case was confirmed at a hospital in Chicago, according to the Centers for Disease Control and Prevention.
The state has reported 649 new cases of the virus in the past 24 hours, compared with an average of about 200 new cases per day from early April through mid-May.
In the first two weeks of the year, the state had a record-high 468 new cases, according the CDC.
A total of 7,939 people have tested positive for the virus, according its most recent tally.
More than 11 million people have been infected.
The CDC has reported that 1.6 million people in the United States have been exposed to the virus.
That’s the highest level in nearly 40 years.
The first cases of a coronaviral infection are thought to have been reported in China, but they are not known to have spread to the United Kingdom.