ST. PAUL, Minn. (AP) — Minnesota health officials said Tuesday the number of newly confirmed coronavirus case slipped after several days of large case counts.

The Minnesota Department of Health reported 480 new COVID-19 infections on Tuesday, bringing the number of confirmed cases in the state to 52,281 since the pandemic began.

Minnesota reported its largest one-day case count on Sunday with more than 860 cases. That continued a four-day stretch where cases exceeded 700.

The drop in newly confirmed cases could be the result of a decrease in tests processed, the Star Tribune reported. About 9,000 diagnostic tests were reported Tuesday, down from nearly 13,600 reported on Monday. New case reports on Mondays and Tuesday are usually lower, reflecting lower testing volume over the weekends.

Health officials reported four additional deaths Tuesday, raising Minnesota’s total to 1,580. Three of the deaths were long-term care residents.

For most people, the coronavirus causes mild or moderate symptoms, such as fever and cough that clear up in two to three weeks. For some, especially older adults and people with existing health problems, it can cause more severe illness, including pneumonia.