COVID-19 Testing and Case Data

This page includes weekly updates of COVID-19 data for Case Western Reserve, Cuyahoga County and Cleveland, from August 2020 to May 2021, when weekly surveillance testing paused. 

While the page has been active since the start of the fall 2020 semester, the university adjusted the presentation of some of the data in January. Specifically, the top three charts—CWRU’s new positive cases, tests, and positivity rate—now incorporate only surveillance tests and results. 

We have made this change because surveillance testing generally aims to identify cases within the broader, asymptomatic population. In short, it provides information regarding the prevalence of COVID-19 in those instances where it is not otherwise evident—e.g. by virtue of people with symptoms or known exposures.

For purposes of transparency, however, the case numbers within the grid boxes below the charts will include data from symptomatic and surveillance testing—as well as self-reported positive cases (e.g. from people tested outside CWRU).

For the latest messages from the university, visit our campus communications page.

Case Western Reserve University Data

New Positive Cases By Week (Surveillance Testing)

New Positive Cases By Week (Surveillance Testing)
Aug. 8-23
Aug. 24-30
Aug. 31-Sept. 6
Sept. 7-13
Sept. 14-20
Sept. 21-27
Sept. 28-Oct. 4
Oct. 5-11
Oct. 12-18
Oct. 19-25
Oct. 26-Nov. 1
Nov. 2-8
Nov. 9-15
Nov. 16-22
Nov. 23-29*
Nov. 30-Dec. 6
Dec. 7-13
Dec. 14-18
Jan. 4-10
Jan. 11-17
Jan. 18-24***
Jan. 25-31****
Feb. 1-7
Feb. 8-14
Feb. 15-21
Feb. 22-28
March 1-7
March 8-14
March 15-21
March 22-28
March 29-April 4
April 5-11
April 12-18
April 19-25
April 26-May 2
May 3-9
May 10-16
May 17-23
May 24-30
Students
10.00
9.00
6.00
3.00
3.00
4.00
1.00
3.00
5.00
3.00
11.00
27.00
30.00
32.00
8.00
28.00
33.00
8.00
18.00
8.00
12.00
28.00
10.00
9.00
12.00
6.00
4.00
5.00
10.00
9.00
12.00
17.00
2.00
3.00
3.00
2.00
0.00
1.00
0.00
Faculty/Staff
0.00
1.00
0.00
2.00
1.00
0.00
2.00
3.00
4.00
3.00
1.00
3.00
6.00
9.00
5.00
15.00
18.00
7.00
15.00
12.00
9.00
14.00
5.00
6.00
3.00
6.00
1.00
4.00
5.00
6.00
14.00
6.00
4.00
2.00
2.00
3.00
3.00
2.00
1.00

Surveillance Tests Administered

Surveillance Tests Administered
Aug. 8-23
Aug. 24-30
Aug. 31-Sept. 6
Sept. 7-13
Sept. 14-20
Sept. 21-27
Sept. 28-Oct. 4
Oct. 5-11
Oct. 12-18
Oct. 19-25
Oct. 26-Nov. 1
Nov. 2-8
Nov. 9-15
Nov. 16-22
Nov. 23-29*
Nov. 30-Dec. 6
Dec. 7-13
Dec. 14-18
Jan. 4-10
Jan. 11-17
Jan. 18-24***
Jan. 25-31****
Feb. 1-7
Feb. 8-14
Feb. 15-21
Feb. 22-28
March 1-7
March 8-14
March 15-21
March 22-28
March 29-April 4
April 5-11
April 12-18
April 19-25
April 26-May 2
May 3-9
May 10-16
May 17-23
May 24-30
Tests Administered
2671.00
321.00
259.00
252.00
336.00
347.00
295.00
616.00
458.00
547.00
1257.00
1317.00
1313.00
2486.00
430.00
2594.00
2721.00
1658.00
2567.00
2457.00
2465.00
5410.00
5240.00
5693.00
5632.00
6502.00
6260.00
6096.00
5822.00
5485.00
5731.00
5719.00
5736.00
5051.00
5754.00
5475.00
3865.00
2644.00
2411.00

Surveillance Testing: Percentage of Positive Results

Surveillance Testing: Percentage of Positive Results
Aug. 8-23
Aug. 24-30
Aug. 31-Sept. 6
Sept. 7-13
Sept. 14-20
Sept. 21-27
Sept. 28-Oct. 4
Oct. 5-11
Oct. 12-18
Oct. 19-25
Oct. 26-Nov. 1
Nov. 2-8
Nov. 9-15
Nov. 16-22
Nov. 23-29*
Nov. 30-Dec. 6**
Dec. 7-13**
Dec. 14-18**
Jan. 4-10
Jan. 11-17
Jan. 18-24***
Jan. 25-31****
Feb. 1-7
Feb. 8-14
Feb. 15-21
Feb. 22-28
March 1-7
March 8-14
March 15-21
March 22-28
March 29-April 4
April 5-11
April 12-18
April 19-25
April 26-May 2
May 3-9
May 10-16
May 17-23
May 24-30
Cumulative Positivity Rate
0.37
0.60
0.74
0.77
0.78
0.81
0.80
0.75
0.77
0.75
0.77
0.97
1.14
1.17
1.19
1.53
1.58
1.52
1.50
1.50
1.38
1.28
1.14
1.03
0.94
0.85
0.77
0.72
0.68
0.65
0.64
0.63
0.59
0.57
0.54
0.52
0.51
0.50
0.49
Weekly Positivity Rate
0.37
2.49
2.31
1.19
0.89
1.15
0.34
0.49
1.09
0.55
0.88
2.05
2.28
1.29
1.86
1.66
1.87
0.90
1.29
0.81
0.85
0.78
0.29
0.26
0.27
0.18
0.08
0.15
0.26
0.27
0.45
0.40
0.10
0.10
0.09
0.09
0.08
0.11
0.04

 

Cumulative Positive Cases+  
Faculty/Staff 209

Students (undergraduate and graduate/professional)

437
Total 645
New Positive Cases for Week Ending May 30+  
Faculty/Staff 1
Students (undergraduate and graduate/professional)

0

Total 1
+/- New Positive Cases Over Week Prior -2
Cumulative Tests Administered+  
Total 123,342
Tests Administered Week Ending May 30+  
Total 2,432
Total Faculty, Staff and Students in Isolation/Quarantine++ Week Ending May 30  
Isolation 0
Quarantine 0

Cuyahoga County Data+++

Total Positive Cases 80,706
New Cases for Week Ending May 29 604
+/- New Positive Cases Over Week Prior -161

For more information about the county-level data, visit the Cuyahoga County Board of Health's website.

City of Cleveland Data

Total Positive Cases 32,882
New Cases for Week Ending May 22 373
+/- New Positive Cases Over Previous Reporting Period -63

For data from the city of Cleveland, visit the Cleveland Department of Public Health website.

 

* The week of Nov. 23-25 was a holiday week.

** Beginning the week of Nov. 30, faculty/staff rates are included in the test results/positivity rates.

*** Does not include Jan. 23-24 move-in testing.

**** Includes Jan. 23-24 move-in testing.

+ Includes data from symptomatic and surveillance testing—as well as self-reported positive cases (e.g. from people tested outside CWRU).

++ Isolation=individuals who are positive or presumed positive (based on symptoms)
Quarantine=Individuals who have been in close contact with someone in isolation

+++ Cuyahoga County data does not include information on the city of Cleveland.