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PROLONGED MAINTENANCE OF SPIROCHETES AND FILTRABLE VIRUSES IN THE FROZEN STATE
1. Observations are reported on the virulence of various types of spirochetes and filtrable viruses after storage at – 787deg;C. for periods up to 3 years. 2. Five specimens of Treponema pallidum belonging to 4 different strains, and 7 specimens of T. pertenue belonging to 5 different strains were t...
| Autores principales: | , |
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| Formato: | Texto |
| Lenguaje: | English |
| Publicado: |
The Rockefeller University Press
1939
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| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2133772/ https://www.ncbi.nlm.nih.gov/pubmed/19870935 |