Cellular impedance measurement as a new tool for poxvirus titration, antibody neutralization testing and evaluation of antiviral substances

► Real-time data acquisition by RT-CES requires low operative effort. ► Time to result is reduced by using RT-CES instead of conventional methods. ► RT-CES enables quantification of virus titers in unknown samples. ► RT-CES is a useful tool for high-throughput characterization of antiviral agents. ► An RT-CES-based virus neutralization test was established.