[Survival of anthrax spores on surfaces (author's transl)].

The survival of spores of Bac. anthracis on the surfaces of wood, resopal, aluminum, teflon, PVC, lacquered sheet metal and ceramics was investigated during a period of 987 days. Two figures are showing the logarithmical reduction rates of germ counts on these materials. The lowest reduction rates were found on wood, the highest on ceramics. On dark surfaces the reduction rate was not as high as on light ones. The increase of relative humidity from 35% to 45% seems to enforce th inactivation of the spores of Bac. anthracis.