The invention relates to methods and devices that use focused radiation to
handle and/or monitor pathogenic fluids. In particular, a method is
provided for dispensing one or more droplets of a fluid containing a
pathogen. The method involves providing the pathogen-containing fluid in
a reservoir and applying focused radiation to the pathogen-containing
fluid in the reservoir in a manner effective to eject a droplet of the
fluid therefrom. Often, a pathogen-impermeable enclosure is used.