More than 20 percent of the state’s population has been fully inoculated against COVID-19, according to the Illinois Department of Public Health, but the positivity rates also continue to rise, with Brookfield and Riverside seeing their number of weekly cases hitting levels not seen since January.

As of the morning of April 13, according to the Cook County Department of Public Health, 47 residents of Brookfield were either confirmed or probable for COVID-19 during the prior week.

That’s the highest one-week total in Brookfield since the period ending Jan. 19, except that at that time the numbers were steadily falling after a spike that began last fall. The new cases pushed the number of Brookfield residents who have contracted COVID-19 to 1,737. 

Of that number 13 people have died since the pandemic began to sweep through the area in March 2020, with the most recent reported by the Cook County Medical Examiner on March 24. Nine of the 13 fatalities in Brookfield have come since Nov. 25, 2020, in the wake of the second wave of novel coronavirus infections.

Northwestern University School of Medicine’s online COVID-19 dashboard is reporting that as of April 11, Brookfield’s seven-day positivity rate had jumped to 8.56 percent, a rise of more than 3 percentage points since April 5.

The number of Riverside residents who have been confirmed or deemed probable for COVID-19 rose by 20 for the week-long period ending on the morning of April 13. That brought the total number of Riversiders contracting the disease to 901, with three of those cases fatal.

The last time Riverside saw at least that many new cases in a week was for the period ending Jan. 26, when there were 26 new cases. Again, that number came during a general downturn in new cases in early 2021.

The number of new cases of COVID-19 during the most recent week (ending on the morning of April 13) in North Riverside tripled over the prior week. After averaging 4.3 cases over the past seven weeks, there were 13 new COVID-19 cases reported in North Riverside during the most recent week.

In all, 554 residents of North Riverside had contracted the disease, with four people dying as a result.

The seven-day rolling positivity rate for the 60546 ZIP code, which includes both Riverside and North Riverside rose to 6.07 percent as of April 11, according to Northwestern University School of Medicine, a 2-percent increase since April 5.

One-day record for vaccines

Over the past seven days, 132,188 doses of COVID-19 vaccine had been administered daily on average in Illinois as of April 12, an increase of more than 27,000 from the daily average one week ago.

That average was driven upward by a one-day record of 175,681 doses administered Friday, the third day in a row the record was broken.

Over 22 percent of the state’s population is now fully vaccinated, according to the Illinois Department of Public Health, as more than 7.2 million vaccine doses had been administered as April 12.

All Illinoisans over the age of 16 may now be vaccinated, although Chicago vaccination sites are planning on expanding eligibility next week. More information about COVID-19 vaccines can be found at, or by calling 1-833-621-1284.

Jerry Nowicki of Capitol News Illinois contributed to this report.