Reduction of Dust-borne Bacteria in the Air of Hospital Wards by Liquid Paraffin Treatment of Bedclothes

Abstract

Until recently it had been commonly accepted that respira- tory infections are spread direct by droplets disseminated from the upper respiratory tract of infected persons or carriers. Large droplets (0.1 to 1 mm.) may be sprayed for a distance of fifteen feet, but, by reason of their size, fall rapidly to the ground.