All human cells should be treated as potentially infectious. Materials should be handled and discarded according to in-house documented procedures for potentially infectious biological materials.
Operators working with ultraviolet (UV) light should wear opaque gloves and a UV protective visor, appropriate to the wavelength emitted. Exposure should be kept to a minimum.
Operators should wear nitrile gloves when handling ethidium bromide. Liquid preparations of ethidium bromide are available from commercial sources and are preferable to handling the powder form.