TABLE I.
The average lifetimes for SARS-CoV-2 and SARS-CoV-1 across a range of environmental and decontamination temperatures. The upper limit of a 95% prediction interval based on statistical analysis of the data is included in parentheses as a conservative estimate of the maximum lifetime across different mutations and environmental conditions. The mean lifetimes of all human coronaviruses considered in this work were greater than one month at temperatures below 10 °C.
| Temperature | SARS-CoV-2 lifetime, t3-log | SARS-CoV-1 lifetime, t3-log | |
|---|---|---|---|
| Environmental temperatures | 10 °C | >1 month | 29.8 d (> 1 month) |
| 15 °C | 15.5 d (>1 month) | 10.4 d (> 1 month) | |
| 20 °C | 5.9 d (>1 month) | 3.8 d (> 1 month) | |
| 25 °C | 2.3 d (25.5 d) | 1.4 d (25.4 d) | |
| 30 °C | 22.5 h (10.0 d) | 13.1 h (8.26 d) | |
| 35 °C | 9.4 h (4.2 d) | 5.2 h (2.9 d) | |
| 40 °C | 4.0 h (1.8 d) | 2.1 h (1.1 d) | |
| Decontamination | 60 °C | 10.5 min (2.3 h) | 4.8 min (1.1 h) |
| 70 °C | 2.5 min (38.6 min) | 1.1 min (18.4 min) | |
| 80 °C | <1 min (11.9 min) | <1 min (6.1 min) | |
| 90 °C | <1 min (4.0 min) | <1 min (2.3 min) |