title: Survival of Enveloped and Non-Enveloped Viruses on Inanimate Surfaces.
abstract: In the present study, we evaluated the viability of non-enveloped viruses, minute virus of mice (MVM) and coxsackievirus B4 (CVB4), and enveloped-viruses, influenza A virus (H1N1) and herpes simplex virus type 1 (HSV-1), on surfaces. We also investigated the impact of the initial concentration of proteins and sodium chloride on the persistence of infectious CVB4 on surfaces. Viral suspensions (>10(4.5) TCID50) were applied to petri dish lids and dried under the air flow of a biosafety cabinet. The recovered viral preparations were titered on appropriate cell lines. Enveloped viruses persisted for less than 5 days while CVB4 and MVM persisted for weeks. However, repetitive cycles of drying and resuspension had a stronger virucidal effect on CVB4 than on H1N1 and HSV-1. These repetitive cycles had no effect on the infectious titer of MVM. When exposed to drying, the initial concentrations of bovine serum albumin (from 0 to 90 mg mL(-1)), fetal calf serum (from 0 to 100%), and sodium chloride (from 0 to 300 mg mL(-1)) affected the viability of CVB4. CVB4 was more likely to be inactivated by drying in a protein-rich medium, whereas the impact of drying was reduced in the presence of sodium chloride. The results of the present study demonstrated that the resistance of viruses to drying, as suggested by iterative drying, was not due to the heterogeneity of viral subpopulations, but was influenced by media compositions and component concentrations, as illustrated in the model of CVB4.
authors.affiliation: Université Lille 2, Faculté de Médecine, CHRU Lille.
authors.forename: Swan
authors.initials: S
authors.lastname: Firquet
authors.forename: Sophie
authors.initials: S
authors.lastname: Beaujard
authors.forename: Pierre-Emmanuel
authors.initials: PE
authors.lastname: Lobert
authors.forename: Famara
authors.initials: F
authors.lastname: Sané
authors.forename: Delphine
authors.initials: D
authors.lastname: Caloone
authors.forename: Daniel
authors.initials: D
authors.lastname: Izard
authors.forename: Didier
authors.initials: D
authors.lastname: Hober
mesh_terms: D003890:Desiccation; D004783:Environmental Microbiology; D050296:Microbial Viability; D012710:Serum Albumin, Bovine / Q000378:metabolism; D012965:Sodium Chloride / Q000378:metabolism; D013997:Time Factors; D014780:Viruses / Q000302:isolation & purification*
chemical_list: D012710:Serum Albumin, Bovine; D012965:Sodium Chloride
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