222-nm ultraviolet light inactivates dried inocula of human rhinovirus and human coronavirus on a glass carrier

Source avec lien : Journal of Hospital Infection, (Prépublication), . 10.1016/j.jhin.2021.08.003

Cette étude a exploré l’impact germicide de différentes quantités d’irradiation UVC lointaine (222-nm) contre des inocula séchés d’un rhinovirus humain (HRV) nu de type 37 et d’un coronavirus humain enveloppé (HCoV) 229E sur un support en verre.

Narita et al. demonstrated strong germicidal effects of 254-nm and 222-nm ultraviolet C (UVC) light against various suspensions of pathogenic bacteria, yeasts, an enveloped virus (influenza A), and a non-enveloped virus (feline calcivirus, a surrogate of the human norovirus)[1]. UVC light strongly inactivated influenza A, but inactivation was less pronounced on the non-enveloped or naked FCV. Dried inocula of other naked viruses have been shown to be infectious for weeks compared to the dried inocula of enveloped viruses influenza A and herpes simplex type 1, which were infectious for fewer than five days [2]. This study explored the germicidal impact of different amounts of far-UVC irradiation (222-nm) against dried inocula of a naked human rhinovirus (HRV) type 37 and an enveloped human coronavirus (HCoV) 229E on a glass carrier.

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