The circumstances of modern warfare frequently necessitate the herding together of large numbers of people in air raid shelters. The control of air borne infections in confined areas has therefore become a particularly urgent problem. Several studies of this problem have been previously noted in The Journal.1 A necessary preliminary to the scientific study of a problem of this nature is the establishment of experimental methods by which the various factors involved can be satisfactorily varied and controlled. For this purpose Edward, Elford and the late Sir Patrick Laidlaw2 have described a method for the experimental investigation of aerosol systems formed by the atomization of suspensions of viruses into the atmosphere. They have performed observations on the physical properties of such systems and found an experimental approach to certain practical problems connected with air borne virus infections. Thus they found that mice placed in an atmosphere into which the respective virus had been atomized contract
STERILIZATION OF THE AIR OF CLOSED SPACES. JAMA. 1943;122(3):177–178. doi:10.1001/jama.1943.02840200033011
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