Table 2.
Demographic and Clinical Characteristics of Confirmed Human Adenovirus Cases Identified as Part of University Outbreak, September 2022–January 2023
| Characteristic | Count (%) |
|---|---|
| All | 90 (100) |
| Gender | |
| Male | 44 (48.9) |
| Female | 46 (51.1) |
| Age, y, mean (range) | 19.6 (17–24) |
| Race | |
| White | 61 (67.8) |
| Asian | 14 (15.6) |
| Black | 4 (4.4) |
| Not specified | 6 (6.7) |
| Other (includes multiple races) | 5 (5.6) |
| Residence location | |
| On campus (residence hall) | 36 (40.0) |
| Off campus | 54 (60.0) |
| Student level | |
| Undergraduate | 88 (97.7) |
| Graduate/professional | 2 (2.2) |
| Symptom severitya | |
| Mild | 80 (88.9) |
| Moderate | 7 (7.8) |
| Severe | 1 (1.1) |
| Critical | 2 (2.2) |
| Hospitalization status | |
| Outpatient | 83 (92.2) |
| Inpatient, not ICU | 5 (5.6) |
| Inpatient, ICU | 2 (2.2) |
Abbreviation: ICU, intensive care unit.
aSymptom severity was determined based on a modified COVID-19 Clinical Severity Score. Mild illness was defined as signs or symptoms of human adenovirus except shortness of breath, dyspnea, or abnormal chest imaging. Moderate illness was defined as evidence of lower respiratory disease and oxygen saturation (SpO2) ≥94%. Severe illness was defined as SpO2 <94%, ratio of arterial oxygen partial pressure to fractional inspired oxygen <300 mg Hg, respiratory rate >30 breaths/minute, or lung infiltrates >50%. Critical illness was defined as respiratory failure, septic shock, multiple organ dysfunction, and/or ICU admission and intubation.