Cells and Viruses HeLa OHIO cells (obtained from the laboratory of D. Blaas, Max Perutz Labs) were grown in 100 mm cell culture dishes (Biologix) maintained in minimal essential medium (MEM, Gibco) supplemented with 10% (v/v) FCS (Gibco), 200 mM l-glutamine (Gibco) and 1% (v/v) ...