There is no virus in a proper antigen reagent dilution.
Antigen reagent diluent is usually added some irrelevant proteins, dissociation components, etc. to reduce the occurrence of false-positive or false-negative results, and is not a virus or virus extract.
1. During the detection process, the diluent can usually be added to dilute the diluent, so that the irrelevant proteins in the diluent to fill the empty space of the plate, so that the antigen or antibody in the sample will not be non-specific binding to the plate, so as not to cause false-positive results.
2. Antigen reagent diluent will generally contain a dissociative component, which can make the epitope of the antigen more exposed, so that the antigen and antibody are fully combined, so as to avoid false negative results.