Abstract
ALTHOUGH there are a number of reports on virus-inhibiting substances, knowledge of those of bacterial origin is rather limited1–6. Horsfall and co-workers7,8 reported that polysaccharides of Klebsiella pneumoniae suppressed multiplication of pneumonia virus of mouse in vivo and of mumps in ovo. Carver et al.9–11 described virus-inhibiting factor(s) which they isolated from different species of bacteria belonging to both Gram-positive and Gram-negative groups. We report here that a substance or substances extracted from Streptococcus faecalis inhibited proliferation of certain human pathogenic viruses in vitro and in vivo.
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HOTTA, S., KOJIMA, M., FUJISAKI, M. et al. An antiviral substance extracted from Streptococcus faecalis. Nature 268, 733–734 (1977). https://doi.org/10.1038/268733a0
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DOI: https://doi.org/10.1038/268733a0
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