Shortcomings of this serological approach include the persistence ... Molecular detection of HAV and anti-HAV IgG avidity testing are indicated to define protracted or relapsing forms of HAV ...

And as companies around the world develop serological tests for SARS-CoV-2, they need more of the antibodies that do the detective work. “The demand is unprecedented,” confirms Lisa Shank ...

First serologic tests used in Europe and Asia were indirect immunofluorescence assays. The most commonly used serological tests for hantavirus are indirect IgG and IgM ELISAs, as well as IgM ...