Important factors for testing barrier materials with surrogate viruses.

AUTOR(ES)

Lytle, C D

RESUMO

This study evaluated bacteriophages phi X174, T7, PRD1, and phi 6 as possible surrogates for pathogenic human viruses to challenge barrier materials and demonstrated some important factors for their use. Chemical incompatibility with test material was demonstrated when lipid-enveloped phi 6 was inactivated by an aqueous eluate of vinyl gloves, but 0.5% calf serum protected phi 6 from the eluate. Low concentrations (2%) of calf serum also prevented the exaggerated binding of the bacteriophages to filters. Recovery of viruses from surfaces decreased with increasing time before recovery. Penetration through punctures displayed different types of kinetics. The combined data indicate that (i) some bacteriophages may serve as surrogate viruses, (ii) experimental conditions determine whether a particular virus is appropriate as a challenge, and (iii) phi X174 is an excellent choice as a surrogate virus to test barrier materials. The data further indicate that before barrier materials are challenged with viruses, adequate tests should be performed to ensure that the virus is compatible with the test material and test conditions, so that meaningful data will result.

Documentos Relacionados

• Dye to use with virus challenge for testing barrier materials.
• Filtration sizes of human immunodeficiency virus type 1 and surrogate viruses used to test barrier materials.
• Plaque inhibition assay for drug susceptibility testing of influenza viruses.
• Early testing of cell cultures for detection of hemadsorbing viruses.
• Probing Plasmodesmal Transport with Plant Viruses.