HARRISBURG — Pennsylvania reported more than 800 new confirmed coronavirus cases Monday, as fresh concerns about it spreading prompted the cancellation of Monday night’s Major League Baseball game in Philadelphia.

The Department of Health reported 839 additional confirmed virus cases and four new deaths. The virus has infected more than 108,000 people in Pennsylvania since the beginning of the pandemic. More than 7,100 have died, most of them in nursing homes.

Of the new positive cases, more than 40% are from Philadelphia and Allegheny County, the department said.

In July, Pennsylvania’s 14-day rate of new cases per 100,000 residents has risen by more than 70%, from below 60 to almost 100.

The seven-day positivity rate — based on the Health Department’s daily public disclosures of the number of people who are newly confirmed to be positive and the number of people who tested negative — has gradually increased in July, from about 4.5% to almost 6%.

Deaths have declined from June to July, although hospitalizations are on the rise in July, according to state data.

Gov. Tom Wolf’s administration is warning travelers visiting any of 20 states to self-quarantine for 14 days after returning to Pennsylvania.

It also two weeks ago imposed a new round of restrictions targeting bars, restaurants, nightclubs and indoor events and gatherings.

Mercer County cases decline

The Health Department reported four new COVID-19 cases Monday in Mercer County, the fifth consecutive day with fewer than 10 new cases.

Since a report of 20 new cases — the highest single-day total since the virus arrived in Mercer County March 22 — on July 22, the Health Department has reported only 22 new infections in the five days since.

The county has had nine COVID-19 deaths, with three fatalities reported between July 14 and 19, reported on according to the Health Department.

No deaths in Trumbull County

The number of COVID-19 deaths in Trumbull County remained at 94, with no new fatalities reported Monday.

The Trumbull County Combined Health District reported 13 new coronavirus cases Monday, for a total of 1,307 cases. The county had no new hospitalizations.

County officials have 74 county residents, including 27 in Warren, under quarantine.