From: An environmental study of tracheostomy on eight COVID-19 patients
| Site | Positive samples (patient 7) | Cycle threshold value |
|---|---|---|
| Environmental sites | ||
| Air (10 cm away from the surgical site) | 1/8 | 38.2 |
| Air (50 cm away from the surgical site) | 0/8 | |
| Floor (50 cm away from the surgical site) | 0/8 | |
| Quilt (50 cm away from the surgical site) | 0/8 | |
| Air outlet fan | 0/8 | |
| Monitor | 0/8 | |
| Sickbed handrail | 1/8 | 36.8 |
| Urine bag | 1/8 | 37.5 |
| Airway secretion | 0/8 | |
| Injection pump | 0/8 | |
| Ventilator screen | 0/8 | |
| Bedside surgical lamp | 0/8 | |
| water in ventilator circuit | 0/8 | |
| Staff PPE sites | ||
| Surgeon’s PAPR | 0/8 | |
| Surgeon’s gloves | 0/8 | |
| Surgeon’s gown | 0/8 | |
| Surgeon’s front of shoes | 0/8 | |
| Assistant’s PAPR | 0/8 | |
| Assistant’s gloves | 0/8 | |
| Assistant’s gown | 0/8 | |
| Assistant’s front of shoes | 0/8 | |