Fig. 4.
Observation of cytopathic effect (CPE) and SARS-CoV particles in Vero E6 cells infected with SARS-CoV isolated from the stool sample of a convalescent-phase patient with SARS. a–b Light microscopy images of Vero E6 cells without/with CPE. c Electron microscopy image of Vero E6 cells with CPE showing the SARS-CoV particles