The latest figures released by the Ministry of Health on Thursday come after public school students returned to classes earlier this month.
It shows that the seven-day average of new cases detected through PCR tests has risen about 7 percent since last week and now stands at 1,135.
Positive rates are also slightly up. In the past seven days about 11.9 percent of tests were positive compared to 11.7 percent last week.
The good news is that most public health indicators remain stable.
The number of people hospitalized with COVID-19 is falling by about six percent week-on-week and now stands at 1,167.
Of these people, 130 are being treated in intensive care.
Also, there has been no notable increase in the number of cases in minimal settings with widespread access to PCR testing thus far.
As of Thursday there were 172 active cases in long-term care homes compared with 162 at that time last week. However, there were fewer active cases in hospitals (73 vs. 79) and nursing homes (110 vs. 111) than a week ago.
Epidemiologists and public health experts have previously expressed concern about a catastrophic fallout from the pandemic coinciding with back-to-school.
However, the data do not yet show a significant increase in viral activity in most regions.
The province added 85 new net deaths to its COVID-19 tally last week, up from 74 new net deaths the previous week.
Since the start of the pandemic more than two years ago, a total of 14,214 Ontarians have died as a result of COVID-19.
