SURVIVAL OF THE VIRUS OF POLIOMYELITIS FOR EIGHT YEARS IN XXXX .

@entity3328 @entity653
1. An instance of successful inoculation of @entity3328 virus after preservation for 8 years in 50 per cent @entity653 is reported. 2. The virulence of the material injected remained essentially unchanged during this period. 3. The fact that @entity3328 virus will survive in @entity653 for so great a period may be taken as further indication of the improbability of streptococci as the inciting organisms. 4. @entity3328 virus would seem to vary in its resistance to glycerolation. 5. The remarkable persistence of active virus outside of the body may have a bearing on the epidemiology of @entity3328 .
