Development of a varicella virus vaccine stabilizer containing no animal-derived component

Various stabilizers containing no animal-derived components were assessed for their efficacy in stabilizing live attenuated varicella virus under various storage temperatures. Stabilizers containing carrageenan, soy protein hydrolysates, or sucrose had a satisfactory performance to maintain infectivity of the cell-free virus when compared to control stabilizer containing animal-derived gelatin/gelatin hydrolysate.