No abstract

To directly compare clinical side effects and biological response modification, IFN-#,,er, IFN-'y,

No abstract

Summary The heritable serum factor that detects naturally occurring delayed‐type iso‐hypersensitivity in guinea pigs was found to be elutable from starch gels following electrophoresis of whole serum. About one‐third of the factor applied was recovered from an area of several bands, devoid of haptoglobins and transferrins, that lies ahead of the slow alpha globulins and behind the fast alpha globulins. The serum factor containing fraction had about 0.5 per cent of the protein content of whole serum. When electrophoresed on paper strips the starch‐gel‐eluted fraction traveled into the beta globulin zone.