realizes is about has_specified_input has_specified_output inheres in role of has role immunoglobulin-mediated neutralization Viruses evaluant role reagent role analyte assay serum neutralization of viral infectivity assay An analyte assay that measures virus-neutralizing abilities of different sera. Different dilutions of serum are mixed with virus and used to infect cells. At the lower dilutions, antibodies will block infection, but at higher dilutions, there will be too few antibodies to have an effect.The neutralization titer is expressed as the reciprocal of the highest dilution at which virus infection is blocked. Bjoern Peters Melanie Courtot influenza neutralization assay url:http://www.virology.ws/2009/05/28/influenza-microneutralization-assay/ serum neutralization of viral infectivity assay blood serum specimen metadata complete