“…Lastly, there is high probability that other organisms, Dip. pneumonice, C. diphtheria, and N. meningitidis, may similarly be conveyed on airborne particles because they have been found in the air or in the dust of wards in which there were cases, but virtually nothing is known as to how they got there (Stillman 1917, Wright et al 1941, Eagleton 1919).…”