[Importation of Shigella and Salmonella into East Germany]

The international tourist traffic and the import of provisions also involves the importation of Shigella and Salmonella into the GDR. In 1980 9% of the Shigella sonnei infections and 50% of the Shigella flexneri infections were imported from 22 or 26 countries, in most cases from tourist countries, typical for the GDR. The Salmonella are imported mainly by feed-stuff. But also the spreading particularly of polyresistant Salmonella by epidemic processes independent of provisions, above all among newborn, must be taken into consideration. The phage typing, bacteriocinotypy, biochemotypy, the antibioram and the determination of the resistance plasmids stood the test for the epidemiological control.