Evaluation of the effectiveness of UV-C dose for photoinactivation of SARS-CoV-2 in contaminated N95 respirator, surgical and cotton fabric masks

Autor: Patrícia Metolina, Lilian Gomes de Oliveira, Bruno Ramos, Yan de Souza Angelo, Paola Minoprio, Antonio Carlos Silva Costa Teixeira
Rok vydání: 2022
Předmět:
Zdroj: Photochemical & Photobiological Sciences. 21:1915-1929
ISSN: 1474-9092
DOI: 10.1007/s43630-022-00268-2
Popis: As part of efforts to combat the Covid-19 pandemic and decrease the high transmissibility of the new coronavirus, SARS-CoV-2, effective inactivation strategies, such as UV-C decontamination technologies, can be reliably disseminated and well-studied. The present study investigated the susceptibility of a high viral load of SARS-CoV-2 in filtering facepiece respirators (FFR) N95, surgical mask, cotton fabric mask and N95 straps under three different doses of UV-C, applying both real-time PCR (qPCR) and plaque formation assays to quantify viral load reduction and virus infectivity, respectively. The results show that more than 95% of the amount of SARS-CoV-2 RNA could be reduced after 10 min of UV-C exposure (0.93 J cm
Databáze: OpenAIRE