Use of Bacteriostatic Agents in Preparation of Seed Cultures of Psittacosis Virus.

Abstract

Addition of 25 mg. % Na sulfadiazine and 125 U./ml. of streptomycin to 10% yolk-sac seed cultures of psittacosis virus as a safeguard against possible contamination has no deleterious effect on the titer of the virus when sealed in glass vials and stored in a CO2 ice box.