title: [Stability of Aujezky's disease virus strain MK25 in an aerosol].
abstract: Twenty-two tests were carried out to evaluate the stability of the virus of Aujeszky's disease in aerosol. Use was made of a aerosol chamber of a flow dynamic type, 450 l, of 60 l/min of passing air, 5 min. exposure, 80-100 per cent relative humidity, and temperature range of 14-21.2 degrees C. The size of aerosol particles surpassed 5 micron, and changed according to the composition of the dilution medium of the vaccine. The aerosol was sampled via impinger at the rate of air flow of 5.2 l/min. Tested were the stabilizing properties of 2% glycerin, 10% pepton, 0.8-2.0% saccharose, 2% gelatin, and 5% skimmed milk added to the extender consisting of a 0.2 M phosphate buffer saline, pH 7, specifically for the MK25 strain of the Aujeszky's disease virus in a dispersed status. Highest stability, reaching 11.2% survival rate of the virus in aerosol was recorded at the dispersion of the vaccine in a 0.2 M buffer saline with the addition of 10% pepton and 0.8% saccharose at pH 7.
mesh_terms: D000336:Aerosols; D000818:Animals; D002021:Buffers; D002642:Chick Embryo; D004355:Drug Stability; D005612:Freeze Drying; D011558:Herpesvirus 1, Suid / Q000276:immunology*; D006863:Hydrogen-Ion Concentration; D010316:Particle Size; D010592:Pharmaceutic Aids / Q000494:pharmacology; D013535:Suspensions; D014765:Viral Vaccines / Q000494:pharmacology*
chemical_list: D000336:Aerosols; D002021:Buffers; D010592:Pharmaceutic Aids; D013535:Suspensions; D014765:Viral Vaccines
vernacular_title: Stabilnost na virusa na bolestta na Aueski--shtam MK25 v aerozol.