Action of ultra violet light upon bacteriophage and filterable viruses.

Abstract

Conclusions

One may say that under the conditions of these experiments, a lytic principle active for B. coli “D” is acted upon by ultra violet light in much the same way as are two strains of known filterable viruses, i. e., herpes and Levaditi's so-called encephalitis virus. Exposure to ultra violet light at a distance of one foot for forty minutes is sufficient to attenuate or destroy both the bacteriophage and the two filterable viruses employed in these experiments. In a substrate of normal rabbit serum all three are protected from the action of ultra violet light.