TABLE 2. Grade level and exposure site characteristics of Test to Stay participants by SARS-CoV-2 test results — Lake County, Illinois, August 9–October 29, 2021.
| Characteristic | Test results
of close contacts |
||
|---|---|---|---|
| Positive (n = 16) | Negative (n = 1,019) | Total (N = 1,035) | |
|
Grade
level/Staff members, no. (row %)
| |||
| Teachers/Staff members |
0 (—) |
2 (100) |
2
|
| Elementary school students (grades
K−5) |
7 (1.1) |
620 (98.9) |
627
|
| Middle school students (grades
6−8) |
4 (1.3) |
299 (98.7) |
303
|
| High school students (grades
9−12) |
5 (4.9) |
98 (95.1) |
103
|
|
Location of
exposure,* no. (row %)
| |||
| Classroom† |
2 (0.6) |
333 (99.4) |
335
|
| School bus |
9 (1.5) |
574 (98.5) |
583
|
| School-sanctioned sport |
5 (6.5) |
72 (93.5) |
77
|
| Extracurricular
activity§ |
0 (—) |
6 (100) |
6
|
| Unknown | 0 (—) | 34 (100) | 34 |
* Exposure locations are mutually exclusive. School nurses reported one exposure site per close contact.
† Classroom exposures include academic classes, indoor recess, physical education class, and staff meetings.
§ Extracurricular activities include drama club and band.