The survival of Shigella sonnei on cotton threads

Abstract

1. Experiments have been carried out to estimate quantitatively the survival of Sh. sonnei at various R.H.'S and two different temperature ranges.2. A fraction may survive for 7–10 days under favourable conditions.3. At R.H.'S of 40–60% the organism survives less well than at higher or lower values.4. Survival is better at temperatures of 5–10°C. than at 20–30°C.I am very grateful to Mr T. Nash for his advice during the course of this work, and also to Col. H. J. Bensted for his comments on the MS.