Quantification of lymphocytic choriomeningitis virus with an immunological focus assay in 24-or 96-well plates

M Battegay, S Cooper, A Althage, J Bänziger… - Journal of virological …, 1991 - Elsevier
Titers of lymphocytic choriomeningitis virus (LCMV) were determined on adherent fibroblast
cell lines in 24-or 96-well plates. After absorption of virus by cells and 48 h incubation under
a methylcellulose overlay, cell monolayers were fixed with 4% formaldehyde in phosphate-
buffered saline, permeabilized by incubation in 0.5% Triton X-100 in balanced salt solution
and then stained with a monoclonal rat anti-LCMV and aperoxidase-labeled second stage
antibody. The sensitivity of the assay is within a factor of 2–4 of conventional plaquing …