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THE PURIFYING EFFECT OF RAIN IN FREEING THE SOIL OF ANTHRAX SPORES
FORT DETRICK FREDERICK MD
An attempt was made in several experiments to imitate in vitro the influence of descending and rising water rainfall on anthrax spores in the soil. The result is that although a part of the total quantity of spores was washed out, still a considerable number, even after an artificial rain corresponding to the natural rainfall of several years in the Netherlands, could be detected in the surface layers. These spores seemed fairly strongly attached to the soil particles. The conjecture is expressed that when the circumstances are favorable for multiplication of anthrax germs in the soil, a repeated rising of water will bring the germs to the surface even when a single rising is not sufficient to do so.
Trans. of Nederlandsch-Indische Bladen voor Diergeneeskunde en Dierenteelt, v55 p211-9 1948.
Approved for public release; distribution is unlimited. Document partially illegible.