Factors Interfering with the Hemolytic Property of Mumps Virus.

Abstract

An inhibitor for the mumps virus hemolysin occurring in allantoic fluids of embryonated eggs infected with mumps virus can be removed by dialysis, treatment with a cation exchange resin or use of a Na citrate buffer as diluent. These results suggest that it is a cation, probably Ca, Mg, Mn. Of these 3, only Ca has demonstrated any significant inhibitory action on the mumps virus hemolysin.