Three additional COVID-19 outbreaks at McHenry County schools identified

More than 60% of McHenry County residents now fully vaccinated against COVID-19, IDPH reports

Three more McHenry County schools reported COVID-19 outbreaks this past week, according to the Illinois Department of Public Health.

They were at Indian Prairie Elementary School and Woods Creek Elementary School, both in Crystal Lake, and Leggee Elementary School in Huntley.

All three schools reported the outbreaks as happening in the classroom, the IDPH said. At Leggee, six staff and students tested positive, while seven tested positive at Woods Creek. Indian Prairie had fewer than five cases.

These are Woods Creek’s and Leggee’s second outbreaks this year.

The level of transmission remains high, the McHenry County Department of Health reported Friday.

The incidence rate decreased to 522.24 new cases over seven days per 100,000 residents as of Sunday, the last day for which data is available, according to the county’s dashboard. The incidence rate had been trending generally upward since mid-October.

For spread to meet the less severe category “substantial,” the incidence rate would need to fall below 100 new cases over seven days per 100,000 residents and remain there for a week, according to the McHenry County health department.

Both the Centers for Disease Control and Prevention and McHenry County health department use the incidence and positivity rates to categorize COVID-19 transmission. When the two metrics do not fall within the same transmission risk category, the higher one is chosen, according to the McHenry County health department.

McHenry County’s COVID-19 test positivity rate declined to 8.1% Tuesday, the last date for which data is available, according to the McHenry County health department. That’s down from a peak of 9.4% on Dec. 1.

The positivity rate for the region including both McHenry and Lake counties remained at 6.3% Tuesday, according to the IDPH. That’s down from levels exceeding 7% early this month and late last month.

Only 1.3% of medical and surgical hospital beds remain available on average, according to the seven-day rolling average reported Friday by the McHenry County health department. An average of 19.3% of intensive care unit beds were available, and hospitalizations for COVID-19-like illness have decreased or remained stable for seven of the past 10 days in the county.

The two-county region comprising McHenry and Lake counties saw its average ICU capacity fall to 14% Thursday, its seventh straight day below the 20% threshold previously used by the state as a trigger point for implementing stricter health mitigations.

Overall, COVID-19 hospitalizations have continued to climb across the two counties, with 19 straight days of COVID-19 patient increases, according to the IDPH. The seven-day average for COVID-19 hospitalizations hit 204 Thursday, a level not seen since January.

Statewide, the number of hospitalizations tied to COVID-19 rose Wednesday to 3,257, the IDPH reported. Of those hospitalized Tuesday, 662 patients were in the ICU and 299 were on ventilators.

An additional 1,956 doses of the COVID-19 vaccine were administered to McHenry County residents Thursday, according to the IDPH, bringing the total number administered locally to 432,457. The state reported 56,036 booster shots had been administered in McHenry County.

A total of 185,214 county residents, or an estimated 60.02% of McHenry County’s population, now are fully vaccinated, meaning they’ve received all doses recommended for the vaccine they were given.

Statewide, 18,007,906 vaccines have been administered, according to state data.

Across Illinois, 74.5% of those age 5 and older have received at least one dose of a vaccine against COVID-19 and 66.6% are fully vaccinated, the IDPH reported Friday. Those rates are 79.5% and 72.1% for those age 12 and older, 81.1% and 73.6% for people 18 and older, and 94.3% and 86.4% for those 65 and older, respectively.

Statewide, the IDPH tallied 7,531 total new cases of COVID-19 on Friday. Another 36 deaths also were logged, bringing the totals to 1,884,744 cases, 26,801 confirmed deaths and 3,041 probable deaths.

The McHenry County health department reported an additional 31 COVID-19 cases Friday. That brings the total to 41,208 cases in McHenry County, including 345 deaths and 34 deaths that likely were caused by COVID-19 but have not been confirmed. No additional deaths were reported Friday.

Neighboring Lake County’s health department reported a total of 80,460 cases and 1,124 deaths Friday. To the south, Kane County’s health department reported 76,430 cases and 914 deaths.

Among McHenry County ZIP codes, Crystal Lake (60014) has the highest number of COVID-19 cases with a total of 6,377 confirmed, according to county data. Woodstock (60098) follows with 4,744 cases.

The McHenry County health department reports ZIP code data only for parts within McHenry County, a department spokeswoman said. Any discrepancies between county and IDPH numbers likely are because of the data’s provisional nature and because each health department finalizes its data at different times, she said.

The following is the rest of the local breakdown of cases by ZIP code: McHenry (60050) 4,533; Lake in the Hills (60156) 3,708; Huntley (60142) 3,078; Algonquin (60102) 2,909; Cary (60013) 2,820; Johnsburg and McHenry (60051) 2,795; Harvard (60033) 2,094; Marengo (60152) 1,731; Wonder Lake (60097) 1,427; Crystal Lake, Bull Valley and Prairie Grove (60012) 1,402; Spring Grove (60081) 1,035; Island Lake (60042) 560; Fox River Grove (60021) 555; Richmond (60071) 477; Hebron (60034) 247; Barrington (60010) 213; Union (60180) 192; and Ringwood and Wonder Lake (60072) 120.