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Effect of desiccation, fluorescent light irradiation, and use of protective formulation (M+S) on survival of phage ΦXacm 2004-16 (8 × 107 PFU/ml). Phage aliquots (20 μl) were spotted in enzyme-linked immunosorbent assay plate wells, kept in desiccation jars, and exposed to a cycle of 16 h of light (fluorescent lamps) and 8 h of darkness (A) or constant (24-h) darkness (B) at room temperature for 60 days.
