Author: José G B Derraik; William A Anderson; Elisabeth A Connelly; Yvonne C Anderson
Title: Rapid evidence summary on SARS-CoV-2 survivorship and disinfection, and a reusable PPE protocol using a double-hit process Document date: 2020_4_6
ID: d48u5w0h_29
Snippet: • Studies found only for SARS-CoV-1 ( Table 2 ). It should be noted that it is not easy to extrapolate the results from most heat treatment studies reported here. They were often performed with the virus exposed while in solutions, which are mechanistically different from surface contamination, as one would most likely encounter on PPE that is not heavily soiled, particularly N95 FFRs. • Environments with lower temperatures seem to be more fa.....
Document: • Studies found only for SARS-CoV-1 ( Table 2 ). It should be noted that it is not easy to extrapolate the results from most heat treatment studies reported here. They were often performed with the virus exposed while in solutions, which are mechanistically different from surface contamination, as one would most likely encounter on PPE that is not heavily soiled, particularly N95 FFRs. • Environments with lower temperatures seem to be more favourable for virus survival and increased transmission rates 14, 29, 30 . While the efficacy of heat treatment appears to be affected by relative humidity 14 , this relationship for SARS-CoV-1 is unclear, as almost all reported experimental studies failed to report on relative humidity (Table 2) . However, the association between temperature and relative humidity was not monotonic for other coronaviruses, with virus survival lowest at moderate relatively humidity (50%) 30 .
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