I thought that members may be interested in the attached article - "Mail and Diseases". A very interesting read.
It has a military connection in that the item illstrated is a letter destined for the Austrian Army stationed in the federal bastion Mainz.
This article first appeared in the monthly journal "Die Briefmarke", Post and Philately in Austria by Gerald Heschl and appears here with approval. Translated by Gerlinde Southey of Lewisham PS and sent out to members of Lewisham PS by Tony Hickey and to contacts in Kent by Michael R Thompson.
Mike :)