ATLANTA — With more than 3,000 public university students and employees across Georgia testing positive for COVID-19 since Aug. 1, some schools are taking action to slow the spread of the respiratory illness.

Georgia Tech is encouraging students to convert to single rooms, moving out roommates over coming weeks to reduce exposure to the coronavirus. Both Georgia Tech and the University of Georgia announced they are renting more off-campus rooms to isolate or quarantine students who have been infected or exposed to the virus.

The University of Georgia reported 821 new infections for the week ended Saturday, a number that President Jere Morehead said Wednesday is “concerning.” He urged students to “continue to make every effort to prioritize their health and safety by taking the proper steps to avoid exposure to this virus.

Around 4% of all cases recorded in Georgia in the last month have been associated with university campuses, according to figures kept by The Associated Press. The number could be higher because some schools, including the state’s largest — Georgia State University — are not posting full reports publicly.

The rising campus infection numbers come as new cases in the rest of Georgia decline. The total number of cases rose to near 275,000 Wednesday, according to state data, but the average number of cases has fallen below 2,000 a day.