Virus Neutralization Assay An in vitro assay that is used to determine whether antibodies that can block viral infection are present in a biological specimen. Virus is mixed with serum taken from the subject and is incubated in culture with laboratory cells, which are monitored over time for cytotoxicity. An in vitro assay in microwell plates that is used to determine whether antibodies that can block viral infection are present in a biological specimen. C4054524 C120695 SeroNet Virus Neutralization Assay VNA Laboratory Procedure Virus Neutralization Assay CDISC MICRONEUTRALIZATION ASSAY SeroNet Authorized Values Bioassay, In Vitro SeroNet Study Descriptors Clinical Data Interchange Standards Consortium Terminology CDISC SDTM Terminology CDISC SDTM Method Terminology