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  • Title: [The problems of the estimation of bacterial contamination in viral drinking water vaccines for poultry].
    Author: Jungbäck C.
    Journal: Berl Munch Tierarztl Wochenschr; 1990 Mar 01; 103(3):81-3. PubMed ID: 2317185.
    Abstract:
    The definition of saprophytic and non pathogenic germs according to the DAB 9 (German Pharmacopeia) will be explained as follows. Germs should be seen as saprophytic and non pathogenic when they are either classified as a pathogen by biochemical methods or when the safety test in chickens shows no adverse local or clinical reactions. The reason for the different test results in testing the species and the amount of contaminating germs at the laboratories of vaccine producers and state laboratories are explained by the unequal dissemination of germs in each batch and by the discontinuity in cooling the vaccine samples.
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