Figure 6
From: Flow cytometric monitoring of influenza A virus infection in MDCK cells during vaccine production
Comparison of standard titration methods with flow cytometry for monitoring virus infection. Equine influenza virus infection of MDCK cells in a lab-scale bioreactor (1 l wv, moi = 3.0, last sample not analyzed by flow cytometry due to cell lysis); 6a: total virus particle concentration measured by hemagglutination assay (∘ ± standard error of the method); 6b: infectious virus concentration determined via virus infectivity assay (TCID50, ∙ ± standard error of the method).