Volume 26, Number 9—September 2020
Research Letter
Prolonged Infectivity of SARS-CoV-2 in Fomites
Boris Pastorino, Franck Touret, Magali Gilles, Xavier de Lamballerie, and Rémi N. Charrel
Table
SARS-CoV-2 titer values for different materials*
| Glass |
Aluminum |
Plastic |
|||||||
|---|---|---|---|---|---|---|---|---|---|
| No BSA |
BSA 10 g/L |
No BSA |
BSA 10 g/L |
No BSA |
BSA 10 g/L |
||||
| 0 | 6 ± 0.2 | ||||||||
| 2 | 3.7 ± 0.5 | 5.1 ± 0.1 | 4 ± 0.1 | 4.8 ± 0.2 | 5.1 ± 0.1 | 5.4 ± 0.3 | |||
| 4 | 3.5 ± 0.5 | 5.1 ± 0.4 | ND | 4.8 ± 0.5 | 4.8 ± 0.4 | 5.2 ± 0.4 | |||
| 8 | 3.4 ± 0.2 | 4.9 ± 0.2 | ND | 4.9 ± 0.1 | 4.2 ± 0.5 | 4.6 ± 0.5 | |||
| 24 | 2.7 ± 0.5 | 4.7 ± 0.3 | ND | 4.9 ± 0.1 | 3.8 ± 0.1 | 4.5 ± 0.1 | 5.99 | ||
| 48 | ND | 4.8 ± 0.1 | ND | 4.4 ± 0.4 | 3.7 ± 0.1 | 4.3 ± 0.2 | 4.99 | ||
| 72 | ND | 4.1 ± 0.2 | ND | 3.4 ± 0.3 | 3.6 ± 0.3 | 4.3 ± 0.4 | 3.99 | ||
| 96 |
ND |
3.9 ± 0.3 |
ND |
3.6 ± 0.3 |
3.3 ± 0.3 |
4.1 ± 0.2 |
3.99 |
||
| Half-life | 17 | >96 | 2.5 | >96 | >96 | >96 | >96 | ||
*Values are mean value of 3 replicates ± SD. BSA, bovine serum albumin; ND, not detectable; SARS-CoV-2, severe acute respiratory syndrome coronavirus 2.
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